Q. Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?
A) Chordata – possess a mouth provided with an upper and a lower jaw
B) Chondrichthyes – possess cartilaginous endoskeleton
C) Mammalia – give birth to young ones
D) Reptilia – possess 3-chambered heart with one incompletely divided ventricle
Explanation
The members of class-Chondrichthyes are marine animals with streamline body and have cartilaginous endoskeleton.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.