First slide

Classification of Animals

Question

Which one of the following characteristics is not shared by birds and mammals?

Easy

A

Viviparity
B

Warm blooded nature
C

Ossified endoskeleton
D

Breathing using lungs

Solution

Viviparity is giving birth to live young one. Birds are oviparous while the mammals are viviparous.
Warm blooded nature and ossified endoskeleton are characteristics of both mammals and birds. Both the group members also breathe using lungs.

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