Question

what is porifera. . . . ​

Answer 1

Answer:

$\huge\boxed{Porifera}$

It is a phylum of primitive invertebrate animals comprising the sponges and having a cellular grade of construction without true tissue or organ formation but with the body permeated by canals and chambers through which a current of water flows and passes in its course through one or more cavities lined with choanocytes.

Answer 2

$\underline \mathbb{PORIFERA}$

》Organisms have holes or pores are over the body.

》 These pores are called ostia and they open into Canal system. Canal system open to outside by single osculum.

》 Canal system helps in circulating water throughout the body to bring in food and oxygen.

》These are non motile animals attached to some solid support.

》These animals are covered with hard outside layer or skeleton.

》 They have cellular organisation.

》 They are commonly called sponges and are mainly found in Marine habitats.

》Eg - Sycon , Euplectella

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