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The canal system is a chracteristic feat...

The canal system is a chracteristic feature of

A

Echinoderms

B

helminthes

C

coelenterates

D

sponges

Text Solution

Verified by Experts

The correct Answer is:
B
Sponges possess an extensive system of interconnected cavities called canal system, which typically consists of incurrent canals, radial canals, excurrent canals and spongocoel. The system is useful for nutrition, respiration and excretion.
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