Which one of the following categories of animals, is correctly described with no single exception in it ?A. All bony fishes have four pairs of gills and an operculum on each sideB. All sponges are marine and have collared cellsC. All mammals are viviparous and possess diaphragm for breathingD. All reptiles possess scales, have a three chambered heart and are cold blood (poikilothermal)

Which one of the following categories of animals, is correctly describ

1.	Which one of the following categories of animals, is correctly described with no single exception in it ?A. All bony fishes have four pairs of gills and an operculum on each sideB. All sponges are marine and have collared cellsC. All mammals are viviparous and possess diaphragm for breathingD. All reptiles possess scales, have a three chambered heart and are cold blood (poikilothermal)
Answer» Correct Answer - A (Chapter - Animal Kingdom, Class - Osteichthyes)

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