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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Similar questions

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

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. Read the following statements
(i) True coelom is a body cavity which arises as a cavity in the embryonic mesoderm.
(ii) Digestive cavity is found in acoelomates, pseudocoelomates as well as coelomates.
(iii) The body cavity of arthropods and non-cephalopod molluscs is called haemocoel.
(iv) Aschelminthes possess true body cavity.
(v) There is no cavity between the body wall and gut in Echinoderms.
Which of the statements are correct?

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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