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Which among the following is incorrect about classification on the basis of coelom?

(a) Coelom is the cavity between the body wall and gut wall

(b) Animals are divided into coelomates, acoelomates and pseudocoelomates

(c) Coelom is the fluid filled space other than lymph vessels and blood vessels

(d) In coelomates, cavities between the gut wall and mesoderm is absent

The question was asked in final exam.

My question is taken from Basis of Classification in Animals in chapter Animal Kingdom of Biology – Class 11

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The correct option is (d) In coelomates, cavities between the gut wall and mesoderm is absent

Easy explanation: Coelom is the cavity between the body wall and gut wall. It is the fluid filled space other than lymph vessels and blood vessels. Animals are divided into coelomates, acoelomates and pseudocoelomates based on the presence or absence of the coelom or false coelom respectively.

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