Which one of the following categories of animals, is
correctly described with no single exception in it?
(a) All reptiles possess scales, have a three
chambered heart and are cold blooded
(poikilothermal).
b) All bony fishes have four pairs of gills and an
operculum on each side.
All sponges are marine and have collared cells.
All mammals are viviparous and possess
diaphragm for breathing.
Answers
Answered by
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Answer:
B
Explanation:
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