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Which one of the following pairs of animal comprises ‘jawless fishes’? |
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a) |
Lampreys and eels |
b) |
Mackerals and rohu |
|
c) |
Lampreys and hag fishes |
d) |
Guppies and hag fishes |
|
Which one of the following pairs of animal comprises ‘jawless fishes’? |
|||
|
a) |
Lampreys and eels |
b) |
Mackerals and rohu |
|
c) |
Lampreys and hag fishes |
d) |
Guppies and hag fishes |
(c)
Lampreys and Myxine (hag fish) belong to the class-Cyclostomata, group-Agnatha of vertebrata. Agnatha have mouth without jaws, the mouth is ventral, suctorial and circular.