Which one of the following groups of animals is correctly matched with its characteristic feature without any exception ?A. Reptilla : possess 3-chambered heart with an incompletely divided ventricleB. Chordata : possess a mouth with an upper and a lower jawC. Chondrichthyes : possess cartilaginous endoskeleton,D. Mammalia : give birth to young ones.

Which one of the following groups of animals is correctly matched with

1.	Which one of the following groups of animals is correctly matched with its characteristic feature without any exception ?A. Reptilla : possess 3-chambered heart with an incompletely divided ventricleB. Chordata : possess a mouth with an upper and a lower jawC. Chondrichthyes : possess cartilaginous endoskeleton,D. Mammalia : give birth to young ones.
Answer» Correct Answer - C Reptiles usually possess 3-chambered heart but crocodiles are an exception with 4-chambered heart. Not all chordates have a mouth with upper and lower jaw. Egg laying mammals include duck-billed platypus. Chondrichthyes (cartilaginous fishes) are the fishes that have cartilaginous endoskeleton. there is no exception to this.