First slide

Classification of Animals

Question

Identify the fish that has four pairs of gills which are covered by an operculum on each side.

Easy

A

Exocoetus
B

Scoliodon
C

Petromyzon
D

Ichthyophis

Solution

Class Osteichthyes includes bony fishes (e.g., Exocoetus - flying fish). They have four pairs of gills which are covered by an operculum on each side.

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