Question

Porifera aur silentreta mein antar porifera aur silentreta mein antar

Answer 1

Porifera:- The work porifera means organisms having holes. These are non motiles animals combined to some solid support. There are holes of ‘pores’, on the whole body. These causes a canal system that helps in circulating water throughout the body to bring in food and oxygen.

These animals are covered with a hard outside layer or skeleton. The body texture involves quite minimal differentiation and division into tissue. They are generally known as sponges, and are generally present iin marine habitats. Euplectelea, sycon and spongilla are some examples of porifera.

Coelenterata:- These are animals found in water. They show large body design differentiation. There is a cavity within the body. The body is formed of two layers of cells: one forms cells on the outside of the body, and the other forms the inner lining of the body.

Some of these species found in colonies (corals), whereas others have a solitary like – span (hydra).

Jellyfish and sea anemones are examples of Coelenterata.

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