Which one of the following statements about certain given animals is correct?

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Which one of the following statements about certain given animals is correct?

Options

(a) Round worms (Aschelminthes) are pseudocoelomates
(b) Molluscs are acoelomates
(c) Insects are pseudocoelomates
(d) Flat worms (Platyhelminthes) are coelomates

Correct Answer:

Round worms (Aschelminthes) are pseudocoelomates

Explanation:

Acoelomates are animals that have no body cavity or coelom. The examples are poriferans, coelenterates, ctenophore, Platyhelminthes and nemertean. pseudo-coelomates are animals that has false or pseudo coelom. Examples are aschelmin-thes. Coelomates are animals that has true coelom enclosed by mesoderm on both sides. Examples: from annelida to arthropoda are coelomates. Hence roundworms are pseudocoelomates, molluses and insects are coelomates while flatworms are acoelomates.

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Topics: Plant and Animal Kingdom (295)
Subject: Biology (4253)

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