Which one of the following statements is incorrect?
1. In cockroaches and prawns, excretion of waste material occurs through Malpighian tubules.
2. In ctenophores, locomotion is mediated by comb plates.
3. In Fasciola, flame cells take part in excretion.
4. Earthworms are hermaphrodites and yet cross-fertilization takes place among them.
(1) The statement (1) is incorrect because Malpighian tubules are excretory structures in most of the insects, including cochroach , but green glands perform excretory functions in crustaceans like prawns, eheras all the other statements are true .
© 2024 GoodEd Technologies Pvt. Ltd.
