First slide

Classification of Animals

Question

The correct flow of water current in sponges is

Easy

A

Ostia → Osculum → Spongocoel → Exterior
B

Osculum → Spongocoel → Ostia → Exterior
C

Ostia → Spongocoel → Osculum → Exterior
D

Osculum → Ostia → Spongocoel → Exterior

Solution

In sponges, water enters the body through numerous ostia into the spongocoel and exits the body through an osculum.

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