Question

difference between organisms on basis of coelom​

Answer 1

Answer:

Coelom is a key feature for classification. Coelom is a cavity between the body wall and gut wall, lined by mesoderm. Depending on presence/absence of coelom, animals have been classified into three:

Coelomate: Coelom is present in a coelomate. Animals belonging to phyla Annelida, Mollusca, Arthropoda, Echinodermata, Hemichordata and Chordata are examples of coelomates.

Pseudocoelomate: In pseudocoelomates, mesoderm appears as pouches between endoderm and ectoderm. But the cavity formed is not lined by mesoderm, e.g.  Aschelminthes.

Acoelomate: Coelom is absent in an acoelomate, e.g. Platyhelminthes.

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