First slide

Classification of Animals

Question

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

Moderate

A

Chordata: Notochord of the embryo is replaced by a vertebral column in the adult
B

Mammalia: Possess mammary glands by which the young ones are nourished
C

Chondrichthyes: Have an air bladder which regulates buoyancy
D

Aves: Fly with the help of wings and feathers

Solution

All mammals posses mammary glands by which the young ones are nourished.
Notochord is not replaced by a vertebral column in protochordates (Urochordata and Cephalochordata).
An air bladder is absent in cartilaginous fishes (Chondrichthyes).
Some birds like ostrich are flightless.

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App