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Which one of the following statements is incorrect ?A. In cockroaches and prawns, excretion of waste material occurs through Malpighian tubules.B. In ctenophores, locomotion is mediated by comb plates.C. In Fasciola flame cells take part in excretionD. Earthworm are hermaphrodites and yet cross fertilisation take place among them. |
Answer» Correct Answer - A In cockroaches, excretion takes place by Malpighian tubules while in prawns, it takes place by green glands. |
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