Question

Acoelomate phylum is

• A. Nemathelminthes
• B. Nematoda
• C. Platyhelminthes
• D. Both A and C

Answer 1

Answer: (C)

Platyhelminthes

A true coelom is lined with mesoderm on both sides. It arises by the formation of mesodermally lined pouches or by splitting in mesoderm. If the body cavity is not lined with mesoderm; it is not a true coelom, and is called pseudocoelom as in the case of animals belonging to Aschelminthes. When the animal does not possess a body cavity it is called acoelomate condition as in the case of animals belonging to Platyhelminthes.

So, the correct answer is option C.