The body cavity is the cavity present between the body wall and the gut wall. In some animals, the body cavity is not lined by mesoderm. Such animals are called

pseudocoelomates

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coelomates

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acoelomates

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none of the above

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Solution

The correct option is A pseudocoelomates
Body cavity is the cavity present between the body wall and the gut wall. Such a body cavity is lined by mesodermal cells. Animals that possess such a body cavity are called coelomates. Examples are earthworms, leech and crab.

In some animals, the body cavity is not lined by mesoderm. Such animals are called pseudocoelomates. Example: Ascaris.

Acoelomates are animals with no coelom as seen in flatworms.

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Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called

Q. The body cavity is the cavity present between the body wall and the gut wall. In some animals, the body cavity is not lined by mesoderm. Such animals are called

Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called.

(a) Acoelomate

(b) Pseudocoelomate

(d) Haemocoelomate

Q. The body cavity present between the body wall and the gut wall of vertebrates is called .

Animals in which the body cavity is not lined by mesoderm, and instead, the mesoderm is present as scattered pouches in between the ectoderm and endoderm are:

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