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Choose the correct statement....

Choose the correct statement.

A

All mammals are viviparous

B

All cyclostomes do not possess jaws and paired fins

C

All reptiles have a three-chambered heart

D

All Pisces have gills covered by an operculum

Text Solution

Verified by Experts

The correct Answer is:
B
Cyclostomata is a class belonging to section 1-Agnatha of subphylum-Vertebrata.
It is a paraphytelic superclass of jawless fishes. They lack paired fins too. Thus option (b) is correct.
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