First slide

Classification of Animals

Question

Which one of the following statements is incorrect ?

Easy

A

In arthropods, respiratory structures include only book-gills and gills.
B

In ctenophores, comb plates help in locomotion.
C

Fasciola has a complex life cycle with several stages.
D

Earthworms are hermaphrodite and yet cross fertilisation occurs in them.

Solution

Respiratory organs in arthropods include gills, book-gills, book lungs or tracheae.

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