Which one of the following statement of animals is correctly described – McqOptions

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1.	Which one of the following statement of animals is correctly described with no single exception in it?
A.	In chondrichthyes, notochord is persistent throughout life.
B.	All mammals are viviparous and possess diaphragm for breathing.
C.	All sponges are marine.
D.	All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal).
Answer» B. All mammals are viviparous and possess diaphragm for breathing.

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