Question

give reason for the following a) sponge are called porous animal

Answer 1

A sponge is a member of the phylum Porifera. It is a simple animal with many cells, but no mouth, muscles, heart or brain. It is sessile: it cannot move from place to place the way most other animals can. A sponge is an animal that grows in one spot like most plants do.

Answer 2

Hey mate here is ur answer:-


Sponges are the simplest form of multicellular organisms. Their walls are lined with many small spores called ostia that allow water to flow into the sponge. The structure of sponge is simple. One end is attached to a solid such as rock while the other end is called the osculum which is open to the environment.


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