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In the absence of a closed vascular syst...

In the absence of a closed vascular system, how do sponges manage to distribute the nutritive substances from choanocytes to rest of the cells ?

A

Through cell-to-cell diffusion

B

Through mesoglea which acts as the food reservoir and distribution system

C

Through the wandering cells, amoebocytes

D

Through cell-to-cell diffusion and amoebocytes

Text Solution

Verified by Experts

The correct Answer is:
D
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