First slide

Classification of Animals

Question

Which of the following is true regarding Nereis, Pheretima and Hirudinaria?

Easy

A

Hirudinaria is aquatic whereas the other two are terrestrial.
B

Pheretima has setae which are absent in the other two.
C

Nereis is dioecious whereas the other two are monoecious.
D

Hirudinaria lacks parapodia which are present in the other two.

Solution

Nereis is dioecious whereas Pheretima and Hirudinaria are monoecious.
Parapodia occur in Nereis.
Setae are present in Pheretima and Nereis.
Nereis is marine.

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