Text Book Back Questions and Answers - Chapter 2 Kingdom Animalia 11th Biology Zoology Guide Samacheer Kalvi Solutions - SaraNextGen [2024-2025]

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Kingdom Animalia
Text Book Back Questions and Answers
I. Multiple Choice Questions
Choose the correct answer
Question 1.
The symmetry exhibited in cnidarians is -
(a) Radial
(b) Bilateral
(c) Pentamerous radial
(d) Asymmetrical
Answer:
(a) Radial
Question 2.
Sea anemone belongs to phylum -
(a) Protozoa
(b) Porifera
(c) Coelenterata
(d) Echinodermata
Answer:
(c) Coelenterata
Question 3.
The excretory cells that are found in platyhelminthes are -
(a) Protonephridia
(b) Flame cells
(c) Solenocytes
(d) All of these
Answer:
(d) All of these
Question 4.
In which of the following organisms, self-fertilization is seen?

(a) Fish
(b) Round worm
(c) Earthworm
(d) Liver fluke
Answer:
(d) Liver fluke
Question 5.
Nephridia of Earthworms are performing the same functions as -
(a) Gills of prawn
(b) Flame cells of Planaria
(c) Trachea of insects
(d) Nematoblasts of Hydra
Answer:
(b) Flame cells of Planaria
Question 6.
Which of the following animals has a true coelom?
(a) Ascaris
(b) Pheretima
(c) Sycon
(d) Taenia solium
Answer:
(b) Pheretima
Question 7.
Metameric segmentation is the main feature of -
(a) Annelida
(b) Echinodermata
(c) Arthropoda
(d) Coelenterata
Answer:
(a) Annelida
Question 8.
In Pheretima locomotion occurs with help of -

(a) circular muscles
(b) longitudinal muscles and setae
(c) circular, longitudinal muscles and setae
(d) parapodia
Answer:
(c) circular, longitudinal muscles and setae
Question 9.
Which of the following have the highest number of species in nature?
(a) Insects
(b) Birds
(c) Angiosperms
(d) Fungi
Answer:
(a) Insects
Question 10.
Which of the following is a crustacean?
(a) Prawn
(b) Snail
(c) Sea anemone
(d) Hydra
Answer:
(a) Prawn
Question 11.
The respiratory pigment in cockroach is -
(a) Haemoglobin
(b) Haemocyanin
(c) Haemoerythrin
(d) None of the above
Answer:
(c) Haemoerythrin
Question 12.
Exoskeleton of which phylum consists of chitinous cuticle?

(a) Annelida
(b) Porifera
(c) Arthropoda
(d) Echinodermata
Answer:
(a) Annelida
Question 13.
Lateral line sense organs occur in -
(a) Salamander
(b) Frog
(c) Water snake
(d) Fish
Answer:
(d) Fish
Question 14.
The limbless amphibian is -
(a) Icthyophis
(b) Hyla
(c) Rana
(d) Salamander
Answer:
(a) Icthyophis
Question 15.
Four chambered heart is present in -
(a) Lizard
(b) Snake
(c) Scorpion
(d) Crocodile
Answer:
(d) Crocodile
Question 16.
Which of the following is not correctly paired?

(a) Humans - Ureotelic
(b) Birds - Uricotelic
(c) Lizards - Uncotelic
(d) Whale - Ammonotelic
Answer:
(d) Whale-Ammonotelic
Question 17.
Which of the following is an egg laying mammal?
(a) Deiphinus
(b) Macropus
(c) Ornitho rhynchus
(d) Equus
Answer:
(c) Ornitho rhynchus
Question 18.
Pneumatic bones are seen in -
(a) Mammalia
(b) Aves
(c) Reptilia
(d) Sponges
Answer:
(b) Aves
Question 19.
Match the following columns and select the correct option.

(a) $p-$ (ii), $q-$ - i), $r-$ (iii), s - (iv)
(b) $p-$ (iii), $q-$ (iv), $r-$ (ii), $s-$ (i)
(c) $p-$ (ii), $q-$-iv), $r$ - (i), $s-$ (iii)
(d) $p-$ (i), $q-$ - (ii), $r-$ (iii), $s-$ (iv)
Answer:
(b) $p-$ (iii), $q-$ (iv), $r-$ (ii), $s-$ (i)

Question 20.
In which of the following phyla, the adult shows radial symmetry but the larva shows bilateral symmetry?
(a) Mollusca
(b) Echinodermata
(c) Arthropoda
(d) Annelida
Answer:
(b) Echinodermata
Question 21.
Which of the following is correctly matched?
(a) Physalia - Portugese man of war
(b) Pennatula - Sea fan
(c) Adamsia - Sea pen
(d) Gorgonia - Sea anemone
Answer:
(a) Physalla - Portugese man of war
Question 22.
Why are spongin and spicutes important to a sponge?
Answer:
Spongin and spicules provide support and supports the soft body parts of the sponges. The spicules give the sponges rigidity and form to the sponges
Question 23.
What are the four characteristics common to most animals?
Answer:
The characteristics common to most animals are the arrangement of cell layers.
- The levels of organization.

- Nature of coelom.
- The presence or absence of segmentation and notochord.
- Organization of the organ system.
Question 24.
list the features that all vertebrates show at some point in their deelopnwnt.
Answer:
All vertebrates possess notochord during embryonic stay. li is repLaced by vertebra) column. All vertebrates possess pained appendages such as fins or lunits. Skin is covered by protective skeleton comprising of scales. fiathcrs hairs, claws, nails etc. Respiration is aerobic through gills, skin.
buccopharyngeal cavity' and lungs. All vertebrates have a muscular heart with two, three or four chambers and kidneys for excretion and osmoregulation.
Question 25.
Compare closed and opened circulatory system.
Answer:
Closed circulatory system:
- The circulation in which blood is present inside the blood vessels is called closed circulatory' system
- It is found in higher organisms, e.g. annelids, cephalochordates and vertebrates.
Open circulatory system:
- The circulation in which blood remains filled in tissue spaces due to the absence of blood vessels is called open circulatory system
- It is found in lower organisms. e.g. arthropods, molluscs and echinoderms.
Question 26.
Compare schizocoelom with enterocoeloni.
Schizocoelom:
- The coelom which is formed by splitting of Mesoderm is called schizocoelom.

- It is found in lower invertebrates like annelids, arthropods and molluscs.
Enterocoeloni:
- The coelom which is formed from the Mesodermal pouches of archenteron is called enteroceolem.
- It is found in echinoderms, hemichordates and chordates.
Question 27.
Identify the structure that the archenteron becomes in a developing animal.
Answer:
The archenteron becomes the cavity of the digestive tract.
Question 28.
Observe the animal below and answer the following questions
(a) Identify the animal
(b) What type of symmetry does this animal exhibit?
(c) Is this animal Cephalized?
(d) How many germ layers does this animal have?
(e) How many openings does this animal's digestive system have?
(f) Does this animal have neurons?

Answer:
(a) Sea anemone (Adarnasia)
(b) Radial symmetry
(c) No
(d) Two (ectoderm and endoderm)
(e) One
(f) No.
Question 29.
Choose the term that does not belong in the following group and explain why
it does not belong?
Answer:
- Notochord, cephalisation, dorsal nerve cord and radial symmetry.
- Notochord, cephalisation and dorsal nerve cord are the characteristic features of chordates. The radial symmetry is not a characteristic feature of chordate. It is the feature of cnidarian and adult echinoderms. Hence it does not belong to the group.
Question 30.
Why flat worms are called acoelomates?
Answer:
Flat worms are called acoelomate because they do not possess a body cavity.
Question 31.
What are flame cells?
Answer:

Question 33.
In which phyla is the larva trochopore found?
Answer:
Annelida.
Question 34.
Which of the chordate characteristics do tunicates retain as adults?
Answer:
Ventral and tabular heart. Respiration is through gill slits.
Question 35.
List the characteristic features that distinguish cartilaginous fishes with living jawless fishes.
Answer:
Cartilaginous Fishes:
- These have powerful jaws which help in predation.
- These are free living predatory fishes.
- These are advanced over jawless fishes.
- These have a tough skin covered by dermal
- Respiration is by lamelliform gills without operculum.
- Paired fins are present.
- Fertilization is internal
- Viviparous e.g. Scoliodon
Living Jawless Fishes:

Question 33.
In which phyla is the larva trochopore found?
Answer:
Annelida.
Question 34.
Which of the chordate characteristics do tunicates retain as adults?
Answer:
Ventral and tabular heart. Respiration is through gill slits.
Question 35.
List the characteristic features that distinguish cartilaginous fishes with living jawless fishes.
Answer:
Cartilaginous Fishes:
- These have powerful jaws which help in predation.
- These are free living predatory fishes.
- These are advanced over jawless fishes.
- These have a tough skin covered by dermal
- Respiration is by lamelliform gills without operculum.
- Paired fins are present.
- Fertilization is internal
- Viviparous e.g. Scoliodon
Living Jawless Fishes:

- They do not have jaws and the mouth is circular and suctorial.
- These are ectoparasites on fishes.
- These are primitive over cartilaginous fishes.
- The skin is soft and devoid of scales.
- These have six to fifteen pair of gills slits.
- Paired fins are absent.
- Fertilization is external
- Oviparous, e.g. Lamprey
Question 36.
List three features that characterise bony fishes.
Answer:
- These fishes have bony endoskeleton.
- The skin is covered by ganoid, cycloid or ctenoid scales.
- Gills are covered by an operculum.
- They are ammonotelic.
- They have mesonephric kidneys.
- External fertilization is seen.
Question 37.
List the functions of air bladder in fishes.
Answer:
- Air bladder helps in gaseous exchange.
- It helps in maintaining buoyancy.
Question 38.
Write the characteristics that contributes to the success of reptiles on land.
Answer:

- The characteristics that contribute to the success of reptiles on land are as follows:
- The presence of dry and comified skin with epidermal scales or scutes which prevent the loss of water.
- The presence of metanephric kidney.
- They are uricotelic (they excrete uric acid to prevent the loss of water).
Question 39.
List the unique features of bird's endoskeleton.
Answer:
- The endoskeleton of birds is bony
- The long bones are hollow with air cavities (pneumatic)
- The body is covered by feathers.
Question 40.
Could the number of eggs or young ones produced by an oviparous and viviparous female be equal? Why?
Answer:
No. The number of eggs or young ones produced by an oviparous and viviparous female cannot be equal. When the oviparous animals lay eggs in the external environment or in the medium, the chance of survival and successful development into the adults are not certain. But in case of viviparous animals, young ones are nurtured by the adult animals. Hence, oviparous animals lay more eggs if they are fertilized in the medium or in water.
Entrance Examination Questions Solved
Choose the correct answer
Question 1.
Classification of sponges is primarily based on the
(a) body organization
(b) body plan
(c) skeleton
(d) canal system

Answer:
(c) skeleton
Question 2.
Symmetry is cnidaria is
(a) radial
(b) bilateral
(c) pentamerous
(d) spherical
Answer:
(a) radial
Question 3.
Cavity of coelenterates is called
(a) coelenteron
(b) coelom
(c) cavity
(d) none of these
Answer:
(a) coelenteron
Question 4.
Sea anemone belongs to phylum
(a) protozoa
(b) porifera
(c) coelenterata
(d) echinodermata
Answer:
(c) coelenterata
Question 5.
Medusa is the reproductive organ of .
(a) Hydra
(b) Aurelia
(c) Obelia
(d) Sea anemone

Answer:
(b) Aurelia
Question 6.
The excretory cells, that are found in platyhelminthes
(a) Protonephridia
(b) Flame cells
(c) Solenocytes
(d) All of these
Answer:
(b) Flame cells
Question 7.
In which of the following organisms, self-fertilization is seen?
(a) Fish
(b) Round worm
(c) Earthworm
(d) Liver fluke
Answer:
(d) Liver fluke
Question 8.
Nephridia of Earthworms are performing same function as 
(a) gills of prawn
(b) flame cells of Planaria
(c) trachea of insects
(d) nematoblasts of Hydra
Answer:
(b) flame cells of Planaria
Question 9.
Phylum of Taenia solium is 
(a) Aschelminthes
(b) Annelids
(c) Platylelminthes

(d) Mollusca
Answer:
(c) Platylelminthes
Question 10.
Ascaris is found in
(a) body cavity
(b) lymph nodes
(c) tissue
(d) alimentary canal
Answer:
(d) alimentary canal
Question 11.
Which of the following animals has a true coelom?
(a) Ascaris
(b) Pheretima
(c) Sycon
(d) Taenia solium
Answer:
(b) Pheretima
Question 12.
Metameric segmentation is the main feature of
(a) Annelida
(b) Echinodermata
(c) Arthropoda
(d) Coelenterata
Answer:
(a) Annelida
Question 13.
Body cavity lined by mesoderm is called . 
(a) coelenteron
(b) pseudocoel
(c) coelom

(d) blastocoel
Answer:
(c) coelom
Question 14.
Which of the following have the highest number of species in nature? 
(a) Insects
(b) Birds
(c) Angiosperms
(d) Fungi
Answer:
(a) Insects
Question 15.
Which of the following is a crustacean? 
(a) Prawn
(b) Snail
(c) Sea anemone
(d) Hydra
Answer:
(a) Prawn
Question 16.
The respiratory pigment present in cockroach is
(a) Haemoglobin
(b) Haemocyanin
(c) Oxyhaemoglobin
(d) None of these
Answer:
(d) None of these
Question 17.
Book lungs are respiratory organs in
(a) Insects
(b) Arachnids

(c) Molluscans
(d) Echinoderms
Answer:
(b) Arachnids
Question 18.
The excretory organ in cockroach is
(a) Malpighian corpuscle
(b) Malpighian tubules
(c) Green gland
(d) Metanephridia
Answer:
(b) Malpighian tubules
Question 19.
Exoskeleton of which phylum consists of chitinous cuticle?
(a) Annelida
(b) Porifera
(c) Arthropoda
(d) Echinodermata
Answer:
(c) Arthropoda
Question 20.
In cockroach, vision is due to
(a) one compound eye
(b) two compound eyes
(c) two simple eyes
(d) two compound and two simple eyes.
Answer:
(b) two compound eyes
Question 21.
Which of the following respires through gills? 
(a) Whale
(b) Turtle

(c) Frog
(d) Prawns
Answer:
(d) Prawns
Question 22.
Animals active at night are called 
(a) diurnal
(b) nocturnal
(c) parasites
(d) nocto - diumal
Answer:
(b) nocturnal
Question 23.
Salient features of Arthropoda is
(a) aquatic and free living
(b) chitinous exoskeleton and jointed appendages
(c) radulla
(d) none of those
Answer:
(b) chitinous exoskeleton and jointed appendages
Question 24.
The second largest number of species containing phylum in the animal kingdom is
(a) Annelida
(b) Arthropoda
(c) Mollusca
(d) Chordata
Answer:
(c) Mollusca
Question 25.
Mollusca is
(a) Triploblastic, acoelomate

(b) Triploblastic, coelomate
(c) Diploblastic, acoelomate
(d) Diploblastic, coelomate
Answer:
(b) Triploblastic, coelomate
Question 26.
Tube feet are the locomotory organs of
(a) Platyhelminthes
(b) Echinodermata
(c) Mollusca
(d) Arthropoda
Answer:
(b) Echinodermata
Question 27.
Given below are four matchings of a animal and its kind of respiratory organ 
(A) Silver fish - Trachea
(B) Scorpion - Book lung
(C) Sea squirt - Pharyngeal gills
(D) Dolphin - Skin
The correct matchings are
(a) $A$ and $B$
(b) $A, B$ and $C$
(c) $B$ and $D$
(d) C and D
Answer:
(b) $A, B$ and $C$
Question 28.
Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits?
(a) Pheretima - Sexual dimorphism
(b) Rana - Complete metamorphosis
(c) Chameleon-Mimicry

(d) Taenia - Polymorphism
Answer:
(b) Rana - Complete metamorphosis
Question 29.
Two common characters found in centipede, cockroach and crab
(a) book lungs and antennae
(b) compound eyes and anal cerci
(c) joint legs and chitinous exoskeleton
(d) green gland and tracheae
Answer:
(c) joint legs and chitinous exoskeleton
Question 30.
Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
(a) Aschelminthes (round worms)
(b) Ctenophores
(c) Sponges
(d) Coelenterates (cnidarians)
Answer:
(a) Aschelminthes (round worms)
Question 31.
Which one feature is common to leech, cockroach and scorpion? 
(a) Nephridia
(b) Ventral nerve cord
(c) Cephalization
(d) Antennae
Answer:
(b) Ventral nerve cord
Question 32.
Which one of the following features is common in silverfish, scorpion, dragonfly and prawn?

(a) Three pairs of legs and segmented body
(b) Chitinous cuticle and two pairs of antennae
(c) Jointed appendages and chitinous exoskeleton
(d) Cephalothorax and trachea
Answer:
(c) Jointed appendages and chitinous exoskeleton
Question 33.
Peripatus is known as a connecting link, because it has the characters of both (BHU 1993)
(a) Fishes \& amphibians
(b) Reptiles $\&$ birds
(c) Aves \& fishes
(d) Arthropoda \& annelids
Answer:
(d) Arthropoda \& annelids
Question 34.
Osphradium of Pila globosa is (BHU 1994, 2000, 2007)
(a) thermoreceptor
(b) Pheretima
(c) chemoreceptor
(d) tangoreceptor
Answer:
(c) chemoreceptor
Question 35.
Green glands present in some arthropods help in (a) Three pairs of legs and segmented body
(b) Chitinous cuticle and two pairs of antennae
(c) Jointed appendages and chitinous exoskeleton
(d) Cephalothorax and trachea
Answer:
(c) Jointed appendages and chitinous exoskeleton
Question 33.
Peripatus is known as a connecting link, because it has the characters of both (BHU 1993)
(a) Fishes & amphibians
(b) Reptiles $&$ birds
(c) Aves & fishes
(d) Arthropoda & annelids
Answer:
(d) Arthropoda \& annelids
Question 34.
Osphradium of Pila globosa is
(a) thermoreceptor
(b) Pheretima
(c) chemoreceptor
(d) tangoreceptor
Answer:
(c) chemoreceptor
Question 35.
Green glands present in some arthropods help in
(a) respiration
(b) excretion
(c) digestion
(d) none of these
Answer:
(b) excretion
(a) respiration
(b) excretion
(c) digestion
(d) none of these
Answer:
(b) excretion

Question 36.
Squid, cuttle fish and Octopus belongs to class of
(a) decapoda
(b) scaphopoda
(c) cephalopoda
(d) apods
Answer:
(c) cephalopoda
Question 39.
The canal system is a characteristic feature of 
(a) sponges
(b) echinoderms
(c) helminthes
(d) coelenterates
Answer:
(a) sponges
Question 40.
Malpighian tubules are 
(a) excretory organs of insects
(b) excretory organs of frog
(c) respiratory organs of insects
(d) endocrine glands of insects
Answer:
(a) excretory organs of insects
Question 41.
Caterpillar and maggot are
(a) larvae
(b) nymphs
(c) adults
(d) pupa
Answer:
(a) larvae

Question 42.
Excretory organ of platyhelminthes is 
(a) gills
(b) flame cells
(c) nephridia
(d) trachea
Answer:
(b) flame cells
Question 43.
Water vascular system is a characteristic of 
(a) ctenophore
(b) annelid
(c) echinodermata
(d) arthropoda
Answer:
(c) echinodermata
Question 44.
Tube feet are the characteristic structures of
(a) jellyfish
(b) starfish
(c) cuttlefish
(d) crayfish
Answer:
(b) starfish
Question 45.
Hormone, which helps in metamorphosis in insects is
(a) pheromone
(b) ecdysone
(c) thyroxine
(d) all of these
Answer:
(b) ecdysone

Question 46.
The muscles associated with the heart of insects are
(a) alary
(b) striped
(c) radial
(d) pericardial
Answer:
(a) alary
Question 47.
Which of the following organisms is pseudocoelomate?
(a) Hookworm
(b) Liver fluke
(c) Jelly fish
(d) Leech
Answer:
(a) Hookworm
Question 48.
Which of the following is not reported to have any fresh water forms?
(a) Mollusca
(b) Sponges
(c) Coelenterates
(d) Echinoderms
Answer:
(d) Echinoderms
Question 49.
Pseudocoelom is not found in
(a) Ascaris
(b) Ancylostoma
(c) Fasciola
(d) none of these

Answer:
(c) Fasciola
Question 50.
Animals devoid of respiratory, excretory and circulatory organs belong to phylum
(a) echinodermata
(b) platyhelminthes
(c) porifera
(d) mollusca
Answer:
(c) porifera
Question 51.
Cilia of gills of bivalve molluscs help in
(a) protection
(b) respiration
(c) excretion
(d) feeding
Answer:
(b) respiration
Question 52.
All flat worms differ from all round worms in having 
(a) triploblastic body
(b) solid mesoderm
(c) bilateral symmetry
(d) metamorphosis in the life history
Answer:
(b) solid mesoderm
Question 53.
Parthenogenesis can be seen in 
(a) frog
(b) honey bee
(c) moth

(d) all of these
Answer:
(b) honey bee
Question 54.
The endocrine gland of insects, which secretes the juvenile hormone, is
(a) corpora allata
(b) corpora albicans
(c) corpora myecaena
(d) all of these
Answer:
(a) corpora allata
Question 55.
Malpighian tubules are
(a) excretory organs of insects
(b) respiratory organs of insects
(c) excretory organs of frog
(d) endocrine glands of insects
Answer:
(a) excretory organs of insects
Question 56.
In mollusca, eye is present over a stalk called
(a) osphradium
(b) ostracum
(c) ommatophore
(d) operculum
Answer:
(c) ommatophore
Question 57.
Which of the following symmetries is found in adult sea anemone?
(a) Radial

(b) Biradial
(c) Bilateral
(d) Spherical
Answer:
(a) Radial
Question 58.
Feeding in sponges takes place through
(a) choanocytes
(b) nurse cells
(c) ostia
(d) osculum
Answer:
(a) choanocytes
Question 59.
Osphradium is meant for
(a) excretion
(b) nutrition
(c) selection and rejection of food
(d) grinding of food
Answer;
(c) selection and rejection of food
Question 60.
Excretory product of spider is
(a) uric acid
(b) ammonia
(c) guanine
(d) none of these
Answer:
(c) guanine
Question 61.
Which of the following is not the character of Taenia soliuml

(a) Polysis
(b) Proglottid
(c) Metamerism
(d) Strobila
Answer:
(c) Metamerism
Question 62.
Daphnia is commonly known as
(a) clam shrimp
(b) fairy shrimp
(c) water fleas
(d) tadpole shrimp
Answer:
(c) water fleas
Question 63.
Wuchereria is found in
(a) lymph nodes
(b) lungs
(c) eye
(d) gonds
Answer:
(a) lymph nodes
Question 64.
"Turbellarians" are free living
(a) flatworms
(b) trematodes
(c) nematodes
(d) cesrtodes
Answer:
(a) flatworms
Question 65.
Polyp phase is absent in

(a) Physalia
(b) Obselia
(c) Hydra
(d) Aurelia
Answer:
(d) Aurelia
Question 66.
Animals having pseudocoelomate and triploblastic nature are present in phyla
(a) annelida
(b) arthropoda
(c) aschelminthes
(d) platyhelminthes
Answer:
(c) aschelminthes
Question 67.
Primitive nervous system is formed in
(a) sponge
(b) cnidaria (coelenterate)
(c) echinodermata
(d) annelida
Answer:
(b) cnidaria (coelenterate)
Question 68.
Tissues are absent in the body of 
(a) sponge
(b) annelida
(c) platyhelminthes
(d) arthropoda
Answer:
(a) sponge

Question 69.
Linmulus belongs to class
(a) onychophora
(b) insect
(c) merostomata
(d) Crustacea
Answer:
(c) merostomata
Question 70.
Ambulacral system is mainly useful for
(a) locomotion
(b) feeding
(c) circulation
(d) defence
Answer:
(b) feeding
Question 71.
Which of the following is a excretory organ in mollusca?
(a) Keber's organ
(b) nephridia
(c) Malpighian organ
(d) Flame cells
Answer:
(a) Keber's organ
Question 72.
Mouth parts of housefly are
(a) Piercing and sucking type
(b) Biting and sucking type
(c) Sponging and sucking type
(d) biting and chewing type
Answer:
(c) Sponging and sucking type

Question 73.
Anus is absent in
(a) Periplaneta
(b) Unio
(c) Fasciola
(d) Pheretima
Answer:
(c) Fasciola
Question 74.
Asymmetry in gastropoda is due to
(a) twisting
(b) torsion
(c) coiling
(d) none of these
Answer:
(b) torsion
Question 75.
The pigment haemocyanin is found in
(a) mollusca
(b) chordate
(c) echinodermata
(d) annelida
Answer:
(a) mollusca
Question 76.
The development of adult characteristics in a moulting insect is promoted by
(a) pheromone
(b) thyroxine
(c) juvenile hormone
(d) ecdysone
Answer:
(d) ecdysone

Question 77.
If you are given an insect, a spider, a Peripatus and a crab, based on which character you can identify an arachnid from others?
(a) one pair of legs
(b) sense organs
(c) four pairs of legs
(d) number of wings
Answer:
(c) four pairs of legs
Question 78.
Choanocytes perform
(a) reproduction
(b) nutrition
(c) discretion of spicules
(d) excretion
Answer:
(b) nutrition
Question 79.
Common characteristics of cockroach, housefly and mosquito are
(a) one pair each of wings and halters
(b) three pairs of legs and one pair of developed wings
(c) two pair of legs and two compound eye
(d) compound and simple eyes
Answer:
(a) one pair each of wings and halters
Question 80.
The secondary host of Taenia is
(a) snail
(b) pig
(c) man
(d) dog
Answer:
(b) pig

Question 81.
The exoskeleton of insect is made up of
(a) pectin
(b) lignin
(c) chitin
(d) suberin
Answer:
(c) chitin
Question 82.
Collar cells are found in
(a) aschelminthes
(b) cnidaria
(c) arthropoda
(d) sponges
Answer:
(d) sponges
Question 83.
Ommatidia are the units that constitute the compound eyes in
(a) Fish '
(b) Insects
(c) Mammals
(d) Birds
Answer:
(b) Insects
Question 84.
Which of the following animals possesses ink gland?
(a) Blue Whale
(b) Scorpion
(c) Sea Urchin
(d) Cuttle Fish
Answer:
(d) Cuttle Fish

Question 85.
Comb plates are present in 
(a) echinoderms
(b) ctenophores
(c) annelids
(d) molluscs
Answer:
(b) ctenophores
Question 86.
Which of the following does not belong to phylum cnidaria?
(a) Sea pen
(b) Sea lily
(c) Sea-fan
(d) Sea anemone
Answer:
(b) Sea lily
Question 87.
Protonephridia are the excretory structures present in
(a) Planaria
(b) Roundworm
(c) Tapeworm
(d) Prawn
Answer:
(a) Planaria
Question 88.
Which of the following is not an annelid?
(a) Leech
(b) Earthworm
(c) Sea mouse
(d) Sea cucumbers
Answer:
(d) Sea cucumbers

Question 89.
Blood worms are the larvae of
(a) Hirudinaria
(b) Chironomus
(c) Limulus
(d) Daphnia
Answer:
(b) Chironomus
Question 90.
Pick the odd pair
(a) Porifera : spicules
(b) Scyphozoan : coral reef
(c) Nematode : pseudocoelomate
(d) Cestoda : proglottid
Answer:
(b) Scyphozoan : coral reef
Question 91.
Insect metamorphosis having larval stage is called
(a) Incomplete metamorphosis
(b) Retrogressive metamorphosis
(c) Heteromorphosis
(d) Complete metamorphosis
Answer:
(d) Complete metamorphosis
Question 92.
Which of the following is not an insect?
(a) Cockroach
(b) Spider
(c) Mosquito
(d) Bedbug
Answer:
(b) Spider

Question 93.
Which of the following enters intestine by penetrating through skin?
(a) Hook worm
(b) Ascaris
(c) Pin worm
(d) Filarialworm
Answer:
(a) Hook worm
Question 94.
In nemathelminthes the coelom is not lined by peritoneum is
(a) acoelom
(b) pseudocoelom
(c) enterocoelom
(d) haemocoel
Answer:
(b) pseudocoelom
Question 95.
Leech secretes which of the following anticoagulant?
(a) Hirudin
(b) Heparin
(c) Serotonin
(d) Histamine
Answer:
(a) Hirudin
Question 96.
Canal system in porifera is not concerned with
(a) respiration
(b) nutrition
(c) sexual reproduction
(d) none of these

Answer:
(c) sexual reproduction
Question 97.
Johnston's organ is present in 
(a) antenna of insect
(b) head of cockroach
(c) abdomen of housefly
(d) abdomen of spider
Answer:
(a) antenna of insect
Question 98.
Which of the following is not an arachnid?
(a) Spider
(b) Itchmite
(c) Louse
(d) Tick
Answer:
(c) Louse
Question 99.
Fasciola hepatica is 
(a) hermaphrodite self fertilizing
(b) hermaphrodite, cross fertilizing
(c) unisexual
(d) both (a) and (b)
Answer:
(d) both (a) and (b)
Question 100.
Match the excretory organs listed under column I with the animals given under column II. Choose the answer which gives the correct combination of alphabets of the column.

(a) $A-q ; B-1 ; C-s ; D-r$
(b) $A=s ; B=q ; C=p ; D=t$
(c) $A-1 ; B-q ; C-s ; D-r$.
(d) $A=q ; B=s ; C=t ; D=p$
Answer:
(a) $A-q ; B-1 ; C-s ; D-r$
Question 101.
Entomology is concerned with the study of
(a) formation and properties of soil
(b) agricultural practices
(c) various aspects of human life
(d) various aspects of insects.
Answer:
(d) various aspects of insects.
Question 102.
Which phylum of the animal kingdom is exclusively marine?
(a) Porifera
(b) Arthropoda
(c) Echinodermata
(d) Molluscs
Answer:
(c) Echinodermata
Question 103.
Study of ticks and mites is
(a) Acarology
(b) Entomology
(c) Malacology

(d) Carcinology
Answer:
(a) Acarology
Question 104.
Larva of mosquito is
(a) maggot
(b) caterpillar
(c) grub
(d) none of these
Answer:
(d) none of these
Question 105.
Transparent hairs on catkins and caterpillars function to?
(a) Trap heat
(b) Trap moisture
(c) Reflect light
(d) Drink water
Answer:
(b) Trap moisture
Question 106.
Which of the following traits is not the characteristic of echinodermata?
(a) Water vascular system
(b) Trochophore larva
(c) Aristotle's lantern
(d) Radial and indeterminate cleavage
Ans.
(b) Trochophore larva
Question 107.
Which of the following is pseudocoelomate?
(a) Nematode
(b) Chordate
(c) Echinodermata

(d) Arthropoda
Answer:
(a) Nematode
Question 108.
Which is not correct for sponges?
(a) Internal fertilization
(b) External fertilization
(c) Gemmule formation
(d) Gametes are formed from epidemial cells.
Answer:
(b) External fertilization
Question 109.
Triploblastic, schizocoelic and unsegmented soft bodied animals belongs to the phylum
(a) annelid
(b) mollusca
(c) nemathelminthes
(d) none of the above
Answer:
(b) mollusca
Question 110.
Which one of the following animals belongs to the phylum cnidaria? 
(a) Silver fish
(b) Squid
(c) Jelly fish
(d) Echidna
Answer:
(c) Jelly fish
Question 111.
Palaemon (prawn) is a 
(a) fish

(b) insect
(c) soft shell mollusca
(d) crustacean
Answer:
(d) crustacean
Question 112.
Tapeworm occurs as a parasite in
(a) liver
(b) stomach
(c) intestine
(d) all of these
Answer:
(c) intestine
Question 113.
What distinguishes an insect from crustacean?
(a) number of eyes
(b) arrangement of nerve cords
(c) number of appendages
(d) presence of wings.
Answer:
(c) number of appendages
Question 114.
Leeches are usually
(a) herbivorous
(b) insectivorous
(c) carnivorous
(d) sanguvorous
Answer:
(d) sanguvorous
Question 115.
Wuchereria bancrofti is a common filarial worm. It belongs to the phylum

(a) Platyhelminthes
(b) Nemathelminthes
(c) Annelid
(d) Coelenterate
Answer:
(b) Nemathelminthes
Question 116.
The dioecius animal is 
(a) Liver fluke
(b) Aurelia
(c) Tapeworm
(d) Earthworm
Answer:
(b) Aurelia
Question 117.
Malpighian tiihuies remove excretory products from
(a) Mouth
(b) Haemolymph
(c) Oesophagus
(d) Alimentary canal
Answer:
(b) Haemolymph
Question 118.
Which of the following cell type is capable of giving rise to other ccli types in sponges?
(a) Pinacocytes
(b) Archaeocytes
(c) Thesocytes
(d) Collencytes
Answer:
(b) Archaeocytes

Question 119.
The infective stage of Entarnoeba histolytica is
(a) cyst
(b) spore
(c) egg
(d) trophozoite
Answer;
(d) trophozoite
Question 120.
Gonads of Obelia occur in
(a) on blastocyst
(b) in hydrula stage
(c) radial canals of medusa
(d) bases of entacies of medusa
Answer:
(c) radial canals of medusa
Question 121.
Which one of the following features is common to leech, cockroach and scorpion?
(a) nephridia
(b) ventral nerve cord
(c) cephalization
(d) antennae
Answer:
(b) ventral nerve cord
Question 122.
Excretory organs of flatworms are
(a) Malpighian tubules
(b) Neprons
(c) Protonephridia
(d) Nnepridia
Answer:
(c) Protonephridia

Question 123.
Sea cucumbers belong to class
(a) Echinoidea
(b) Ilolothuroidea
(c) Ophiuroidea
(d) Asteroidean
Answer:
(b) Holothuroidea
Question 124.
One of the following is a very unique feature of the mammals 
(a) Homeothermy
(b) Presence of diaphragam
(c) Four chambered heart
(d) Rib cage
Answer:
(b) Presence of diaphragam
Question 125.
Uricotelisum is found in
(a) Mammals and birds
(b) Fishes and fresh water protozoans
(c) Birds, reptiles and insects
(d) Frogs and toads
Answer:
(c) Birds, reptiles and insects
Question 126.
Which one of the following characters is not typical of the class mammalian?
(a) Thecodont dentition
(b) Alveolar lungs
(C) Ten pairs of cranial nerves
(d) Seven cervical vertebrate

Answer:
(c) Ten pairs of cranial nerves
Question 127.
Which one of the following in birds, indicates their reptilian ancestry?
(a) Two special chambers crop and gizzard in their digestive tract
(b) Eggs with a calcareous shell
(c) Scales on their hind limbs
(d) Four - chambered heart
Answer:
(e) Scales on their hind limbs
Question 128.
Which one of the following pairs of animals comprises 'Jawless fishes'?
(a) Mackerals and rohu
(b) Lampreys and hag fishes
(c) Guppies and hag fishes
(d) Lampreys and eels
Answer:
(b) Lampreys and hag fishes
Question 129.
Camouflage of chameleon is associated with
(a) Chromoplast
(b) Chromosome
(c) Chromatophore
(d) Chromomere
Answer:
(c) Chromatophore
Question 130.
In fast swimming fishes, propulsion is due to
(a) Pelvic fin
(b) Pectoral fin

(c) Dorsal fin
(d) Caudal fin
Answer:
(d) Caudal fin
Question 131.
Body temperature of cold blooded animals

(a) Is constant
(b) Fluctuates with surrounding temperature
(c) Becomes very low times
(d) Is very cold
Answer:
(b) Fluctuates with surrounding temperature
Question 132.
Which of the following is an egg laying mammal?
(a) Kangaroo
(b) Platypus
(c) Penguin
(d) Whale
Answer:
(b) Platypus
Question 133.
Which of the following are uricotelic animals?
(a) rohu and frog
(b) camel
(c) lizard and crow
(d) earthworm and eagle
Answer:
(c) lizard and crow
Question 134.
Which of the following does not come under the class mammals?
(a) flying fox

(b) hedgehog
(c) manatee
(d) lamprey
Answer:
(d) lamprey
Question 135.
Which of the following is concerned with the formation of urea in rabbit?
(a) spleen
(b) kidney
(c) blood
(d) liver
Answer:
(d) liver
Question 136.
Lateral line is present in
(a) dog fish
(b) jelly fish
(c) star fish
(d) none of these
Answer:
(a) dog fish
Question 137.
The largest and heaviest mammals in the world is
(a) blue whale
(b) elephant
(c) lion
(d) tiger
Answer:
(a) blue whale
Question 138.
Ichthyophis is a member of

(a) amphibian
(b) mollusca
(c) reptilian
(d) annelid
Answer:
(a) amphibian
Question 139.
Renal portal system is absent in
(a) reptiles
(b) amphibians
(c) reptiles and amphibians
(d) birds
Answer:
(b) amphibian
Question 140.
Bone marrow is absent in
(b) amphibian
(c) fishes
(d) birds
Answer:
(d) birds
Question 141.
Urea is formed in which organ of rabbit?
(a) liver
(b) kidney
(c) spleen
(d) lung
Answer:
(a) liver
Question 142.
Which of the following is not classified as amphibian?

(a) frog
(b) salamander
(c) tortoise
(d) ichthiophis
Answer:
(c) tortoise
Question 143.
The excretory material of bony fish is
(a) urea
(b) protein
(c) ammonia
(d) amino acid
Answer:
(c) ammonia
Question 144.
Limbless amphibians belong to the order
(a) anura
(b) urodela
(c) gymnophiona
(d) lissamphibia
Answer:
(c) gymnophiona
Question 145.
Which of the following snakes is non-poisonous?.
(a) cobra
(b) krait
(c) viper
(d) python
Answer:
(d) python
Question 146.
Placoid scales are found in

(a) reptilia
(b) bony fishes
(c) cartilaginous fishes
(d) amphibians
Answer:
(c) cartilaginous fishes
Question 147.
Which of the following is a correct sequence of decreasing order of number of species?
(a) aves, pisces, reptiles, amphibians, mammals
(b) pisces, aves, reptiles, mammals, amphibians
(c) pisces, mammals, reptiles, amphibians, aves
(d) amphibians, aves, pisces, mammals, reptiles
Answer:
(b) pisces, aves, reptiles, mammals, amphibians
Question 148.
Excretory organ in Balanoglossus are
(a) nephridia
(b) antennary gland
(c) collar cord
(d) proboscis gland
Answer:
(d) proboscis gland
Question 149.
Reptiles share which of the following character with birds and mammals?
(a) Amnion
(b) Homeothermy
(c) Diaphragm
(d) Hippie
Answer:
(a) Amnion

Question 150.
Cowper's gland is present in
(a) Frog
(b) Earthworm
(c) Rabbit
(d) Cockroach
Answer:
(c) Rabbit
Question 151.
Which of the following pairs belong to the category of cold blooded animals?
(a) bat \& rat
(b) snakes \& birds
(c) frog \& snakes
(d) birds \& monkey
Answer:
(c) frog $&$ snakes
Question 152.
The character of birds without exception is
(a) omnivorous
(b) beak without teeth
(c) flying wings
(d) lay eggs with calcareous shells
Answer:
(b) beak without teeth
Question 153.
Quill feathers (a) the base of quill wings are called
(a) remiges
(b) coverts
(c) barbules
(d) down feathers
Answer:
(a) remiges

Question 154.
Which of the following pair of organisms are uricotelic? 
(a) cartilaginous fishes and mammals
(b) reptiles and mammals
(c) birds and insects
(d) bony fishes and lizards
Answer:
(c) birds and insects
Question 155.
In the urinogenital organs of rabbit which one of following part is present in male but not in female? 
(a) Urethra
(b) Fallopian tube
(c) Vagina
(d) Vas deferens
Answer:
(d) Vas deferens
Question 156.
Which one of the following features is present in some stage of the life history of all chordates? 
(a) Blood flowing forward in dorsal blood vessel
(b) Pharyngeal gill slits
(c) A ventral hollow nerve cord
(d) Heart lying dorsally
Answer:
(b) Pharyngeal gill slits
Question 157.
Thoracic cage in rabbit is made up of 
(a) Ribs, vertebral column \& diaphragm
(b) Ribs, diaphragm \& sternum
(c) Vertebral column, diaphragm \& sternum
(d) Ribs, vertebral column $\&$ sternum

Answer:
(d) Ribs, vertebral column $\&$ sternum
Question 158.
Which of the following has exoskeleton of scales and paired copulatory organ or penis?
(a) Sharks
(b) Lizards
(c) Urodela
(d) Urochordata
Answer:
(b) Lizards
Question 159.
Laterally compressed tail is found in
(a) Fresh water snakes
(b) Terrestrial snakes
(c) Marine non-poisonous snakes
(d) Marine poisonous snakes
Answer:
(d) Marine poisonous snakes
Question 160.
Which of the following is characteristic feature of fishes?
(a) Tail and venous heart
(b) Epidermal scales and tail
(c) Venous heart and gills
(d) Epidcrmal scales and gills
Answer:
(c) Venous heart and gills
Question 161.
Similarity between fish and tadpole is
(a) Scales
(b) Legs
(c) Lateral line

(d) Fins
Answer:
(c) Lateral line
Question 162.
Four-chambered heart is present in
(a) frog
(b) crocodile
(c) shark
(d) lizard
Answer:
(b) crocodile
Question 163.
Right aortic arch is present in
(a) reptiles only
(b) mammals only
(c) birds only
(d) both birds and mammals
Answer:
(c) birds only
Question 164.
Kidney of adult reptiles are
(a) mesonephric
(b) metanephric
(c) pronephnc
(d) both (a) and (b)
Answer:
(b) metanephric
Question 165.
Marine fishes drink sea water to
(a) meet their body salt requirements
(b) compensate loss of water from their body
(c) flush out nitrogenous wastes from their body

(d) achieve all of the above
Answer:
(d) achieve all of the above
Question 166.
In which of the following fishes the males have brood pouch, where eggs laid by the female remain till they hatch?
(a) Lung fish
(b) Climbing perch
(c) Salmon
(d) Sea horse
Answer:
(d) Sea horse
Question 167.
Match the names of branches of science listed under column-I with the field study given under column-II choose the choice which gives the correct combination of the alphabets 

(a) $A-s, B-p, C-q, D-r$
(b) $A-q, B-s, C-r, D-q$
(c) $A-s, B-q, C-p, D-r$
(d) $A-p, B-s, C-r, D-q$
Answer:
(a) A - s, B - p, C - q, D-r
Question 168.
Identify the edible fresh water teleosts
(a) Sharks
(b) Rays and skates
(c) Hilsa ilisha
(d) Catla catla
Answer:
(d) Catla catla
Question 169.
Turtles are
(a) Pisces
(b) Reptiles
(c) Molluscans
(d) Arthropods
Answer:
(b) Reptiles
Question 170.
Harversian systems are found in the bones of.

(a) Pigeon
(b) Panther
(c) Pipe fish
(d) Python
Answer:
(b) Panther
Question 171.
Choose the correct combination of alphabets which matches the zoological names given under column I with their common names given under column-II

(a) $A-F, B-G, C-E, D-H$
(b) $A-G, B-E, C-H, D-F$
(c) $A-F, B-E, C-H, D-G$
(d) $A-F, B-E, C-G, D-H$
Answer:
(c) $A-F, B-E, C-H, D-G$
Question 172.
Which of the following statements is true?
(a) All chordates are vertebrates
(b) All vertebrates are chordates
(c) Invertebrates possess a tubular nerve cord
(d) Non-chordates have a vertebral column
Answer:
(b) All vertebrates are chordates
Question 173.
Choose the cat fish from the following.
(a) Cirrhina mriga / a
(b) Wa / logo atiti
(c) Lobeo rohita
(d) Catia calla
Answer:
(b) Wallago allu
Question 174.
A four chambered heart is not found in

(a) Mammals
(b) Birds
(c) Snake
(d) Crocodile
Answer:
(c) Snake
Question 175.
Calotes versicolor is a
(a) House lizard
(b) Rock lizard
(c) Garden lizard
(d) Flying lizard
Answer:
(c) Garden lizard
Question 176.
Scientific name of king cobra is
(a) Naja naja
(b) Amphibians
(c) Naja Hannah
(d) Vipera russelli
Answer:
(c) Naja Hannah

Question 177.
Branch of zoology dealing with the study of amphibians and reptiles is called 
(a) Ichthyology
(b) Ornithology
(c) Herpetology
(d) Malacology
Answer:
(c) Herpetology
Question 178.
Adaptation of colour vision is found in
(a) Mammals
(b) Aves
(c) Reptiles
(d) All of these
Answer:
(d) All of these
Question 179.
Epidemial scale is the characteristic feature of class reptilian, which of the following class is without epidermal scale?
(a) Fish
(b) Aves
(c) Mammals
(d) Amphibians

Answer:
(d) Amphibians
Question 180.
Duck-billed platypus is a connecting link between
(a) Reptile and bird
(b) Living and non-living
(c) Reptile and mammal
(d) Echinodermata and chordate
Answer:
(c) Reptile and mammal
Question 181.
Which of the following is a egg laying mammal?
(a) Dolphin
(b) Platypus
(c) Whale
(d) Walrus
Answer:
(b) Platypus
Question 182.
In sharks, one of the following is absent
(a) Claspers
(b) Placoid scales
(c) Cartilaginous endoskeleton
(d) Air bladder
Answer:
(d) Air bladder
Question 183.
Which one of the following animals belongs to cyclostomata?
(a) Channa
(b) Loris
(c) Dodo
(d) Pertomyzon

Answer:
(d) Pertomyzon
Question 184.
Which of the following is dominant in desert?
(a) Lizard
(b) Tiger
(c) Leopard
(d) Hyla
Answer:
(a) Lizard
Question 185.
Two examples in which the nitrogenous wastes are excreted from body in the form of uric acid are
(a) birds and lizards
(b) insects and bony fishes
(c) mammals and molluscs
(d) frogs and cartilaginous fishes
Answer:
(a) birds and lizards
Question 186.
The arrangement of ear ossicles in mammalian ear is
(a) stapes, malleus, incus
(b) malleus, incus, stapes
(c) incus, malleus, stapes
(d) columella, inatleus, incus
Answer:
(b) malleus, incus, stapes
Question 187.
Snake has
(a) movable eyelids
(b) immovable eyelids
(c) no cyclids

(d) eyelids in pouches
Answer:
(b) immovable eyelids
Question 188.
Which among these is correct combination of aquatic mammals? 
(a) Dolphins, Seals, Trygon
(b) Whales, Dolphin, Seals
(c) Trygon, Whales, Seals
(d) Seals, Dolphin, Sharks
Answer:
(b) Whales, Dolphin, Seals
Question 189.
In case of poriferance, the spongocoel is lined with flagellated cells called
(a) Oscula
(b) Coenocytes
(c) Mesenchymal cells
(d) Ostia
Answer:
(b) Coenocytes
Question 190.
Which is the National Aquatic animal of India?
(a) River Dolphin
(b) Blue whale
(c) Sca horse
(d) Gangetic shark
Answer:
(a) River Dolphin
Question 191.
An important characteristic that Hernichordates share with chordates is
(a) Ventral tubular nerve chord

(b) Pharynx with gill slits
(c) Pharynx without gill slits
(d) Absence of notochord
Answer:
(a) Ventral tubular nerve chord