Question

Explain animal group possessing false body cavity(nematod)

Answer 1

Pseudocoelomate animals have a pseudocoelom (literally “false cavity”), which is a fluid filled body cavity. Tissue derived from mesoderm partly lines the fluid filled body cavity of these animals. ... Acoelomate animals, like flatworms, have no body cavity at all.

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Answer 2

Tissue derived from mesoderm partly lines the fluid filled body cavity of these animals. Thus, although organs are held in place loosely, they are not as well organized as in a coelomate. Some organisms may not possess a coelom or may have a false coelom (pseudocoelom).