Organisms having 'pores' all over the body an | vedclass

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(D) The organisms described are sponges. They belong to the phylum $Porifera$. These organisms are characterized by the presence of numerous pores cal

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Porifera

Vedclass · Answer

(D) The organisms described are sponges. They belong to the phylum $Porifera$. These organisms are characterized by the presence of numerous pores called $ostia$ all over their body,which lead into a central cavity known as the $spongocoel$. This system,known as the $canal$ $system$ or $water$ $transport$ $system$,helps in circulating water throughout the body to bring in food,oxygen,and remove waste products.

Organisms having 'pores' all over the body and a canal system for bringing in food and oxygen belong to the phylum:

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Identify and write the names of the parts labeled as $A, B, C$ and $D$ in the given figure of a seahorse in your answer book.

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