Animal Kingdom Question 123

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

[2011]

(a) Reptilia : possess 3 - chambered heart with one incompletely divided ventricle

(b) Chordata : possess a mouth provided with an upper and lower jaw

(c) Chondrichthyes : possess cartilagious endoskeleton

(d) Mammalia : give birth to young one.

Show Answer

Answer : c

Hints & Solutions

(c) Chondrichthyes are the cartilaginous fish with a flexible skeleton made of cartilage rather than bone.