question_answer

  Which one of the following groups of animals is correctly matched with its characteristic feature without even a single exception?            

A) Reptilia: possess 3-chamberedgheart with one incompletely divided ventricle.

B) Chordata: Possess a mouth provided with an upper and lower jaw

C) Chondrichthyes: Possess cartilaginous endoskeleton.   

D) Mammalia: Give birth to young one.