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A list of animals (i-vii) is given. Clas...

A list of animals (i-vii) is given. Classify them as acoelomates, coelomates and pseudocoelomates and select the correct option.
(i) Adamsia (ii) Wuchereria (iii) Nereis (iv) Earthworm (v) Planaria (vi) Ascaris (vii) Liver fluke (viii) Scorpion

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The correct Answer is:
A
Acoelomates are those animals which do not have coelom (body cavity), e.g., coelentrates (Adamsia) and flatworms (Planaria and liver fluke). Coelomates are the organisms with true coelom, e.g., annelids (Nereis and earthworm) and arthropods (scorpion). Pseudocoelomates have false coelom, e.g., nematodes (Wuchereria and Ascaris).
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