Which one of the following statements is incorrect?

Question:

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 help in excretion

d. Earthworms are hermaphrodites and yet cross-fertilization takes

place among them.

Solution:

Option (a) In cockroaches and prawns excretion of waste material occurs

through malpighian tubules. is the answer.

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