First slide

Classification of Animals

Question

Mark the correct statement.

Easy

A

Digestion in sponges is intracellular.
B

Digestion in sponges is extracellular.
C

Digestion in sponges is both intracellular and extracellular.
D

Sponges have a complete alimentary canal

Solution

Digestion in sponges is exclusively intracellular and takes place in choanocytes and archaeocytes. Alimentary canal is absent in sponges.

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