SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

A transverse section of Pheretima taken through the 10th segment is observed in microscope. Which of the following structures can be observed in the section?

a)

Stomach, dorsal blood vessel, ventral blood vessel, supraoesophageal vessel, anterior loops, ring vessel and micronephridia

b)

Stomach, dorsal blood vessel, ventral blood vessel, lateral hearts, ring vessels and pharyngeal nephridia

c)

Intestine, dorsal blood vessel, ventral blood vessel, supraoesophageal vessel and septal nephridia

d)

Stomach, dorsal blood vessel, sub-neural blood vessel and lateral hearts


Question ID - 291 :-

A transverse section of Pheretima taken through the 10th segment is observed in microscope. Which of the following structures can be observed in the section?

a)

Stomach, dorsal blood vessel, ventral blood vessel, supraoesophageal vessel, anterior loops, ring vessel and micronephridia

b)

Stomach, dorsal blood vessel, ventral blood vessel, lateral hearts, ring vessels and pharyngeal nephridia

c)

Intestine, dorsal blood vessel, ventral blood vessel, supraoesophageal vessel and septal nephridia

d)

Stomach, dorsal blood vessel, sub-neural blood vessel and lateral hearts

1 Answer
5876 Votes
3537

Answer Key : (a) -

(a)

A transverse section of Pheretima taken through the 10th segment shows the following structures - stomach, dorsal blood vessel, ventral blood vessel supraoesophageal vessel, anterior loops, ring vessel and micronephridia.



Next Question :

Sycon belongs to a group of animals which are best described as

a)

Multicellular with a gastrovascular system

b)

Multicellular having tissue organization, but no body cavity

c)

Unicellular or acellular

d)

Multicellular without any tissue organization


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