The formation of the canal system in sponges | vedclass

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(A) The canal system in sponges is a unique feature of the phylum $Porifera$. It is formed by the complex folding of the body wall,which includes the

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Folding of inner walls

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(A) The canal system in sponges is a unique feature of the phylum $Porifera$. It is formed by the complex folding of the body wall,which includes the outer ectoderm (pinacoderm) and the inner endoderm (choanoderm). This system facilitates water circulation,which is essential for nutrition,respiration,and excretion.

The formation of the canal system in sponges is due to

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Assertion $(A):$ The body of sponges is supported by a skeleton.
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