First slide

Classification of Animals

Question

Select the correct statement.

Moderate

A

Leech has incomplete gut.
B

Prawn has statocysts.
C

Snail has a chitinous shell.
D

Shark has cycloid scales.

Solution

Statocysts are the balancing organs present in some arthropods, e.g., Prawn.
Leech has a complete gut.
Molluscs (e.g. Snail) have a calcareous shell.
Scales of cartilaginous fishes (e.g. Shark) are placoid.

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