Question

50 points ....... Question from Biology



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Write about Pseudocoelomates Which phylums are included in this ? .

Answer 1

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YOUR ANSWER...

✔Pseudocoelomate animals have pseudocoelom.

✔It is a fluid filled body cavity.

✔A pseudocoelomate is an organism with body cavity that is not derived from the mesoderm.

✔The phylums are:

Rotifera, Gastro-tricha, Kinorhyncha, Nematoda and Nematomorpha.

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Answer 2

Let us understand what is coelom.


Presence of body cavity in between body wall and gut wall, which is lined by mesoderm is known as coelom.

Acoelomate :- The animals in which coelom is absent. Example of phylum :- Platyhelminthes.

Coelomate :- The animals which have a coelom. Example :- Annelida.

Pseudocoelomates :- In pseudocoelomates, mesoderm is present as scattered pouches, which is known as pesudocoelom. That is, they have a body cavity, but it is not lined by mesodermal cell.

Example :- Nematoda/Aschelminthes.