First slide

Classification of Animals

Question

Identify the animal groups characterised by the presence of air bladder and air sacs respectively.

Easy

A

Chondrichthyes and Reptilia
B

Osteichthyes and Reptilia
C

Chondrichthyes and Aves
D

Osteichthyes and Aves

Solution

An air bladder regulates buoyancy in Osteichthyes.
Air sacs connected to lungs supplement ventilation in Aves.

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