Assertion : Sponges belong to Porifera.Reason | vedclass

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(A) Sponges are multicellular organisms that belong to the phylum $Porifera$. They possess a unique water transport or canal system,which is a definin

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If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) Sponges are multicellular organisms that belong to the phylum $Porifera$. They possess a unique water transport or canal system,which is a defining characteristic of this phylum. Water enters through minute pores called $ostia$ in the body wall into a central cavity,the $spongocoel$,and goes out through the $osculum$. This pathway of water transport is helpful in food gathering,respiratory exchange,and removal of waste. Since the canal system is a diagnostic feature that defines the phylum $Porifera$,the Reason correctly explains the Assertion.

Assertion : Sponges belong to Porifera.
Reason : Sponges have a canal system.

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Assertion : Sponges belong to Porifera.Reason : Sponges have a canal system.