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Which is correctly described with no sin...

Which is correctly described with no single exception

A

All reptiles possess scales, have a three chambered heart and are cold blooded.

B

All bony fishes have four pairs of gills and an operculum and each side.

C

All sponges are marine and collared cells.

D

All mammals are viviparous and possess diaphragm for breathing.

Text Solution

Verified by Experts

The correct Answer is:
B
All body fishes hae four pairs of gills and an operculum on each side without any exception.
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