Q.
Which of the following is true regarding Nereis, Pheretima and Hirudinaria?
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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.
answer is C.
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Detailed 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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