First slide

Classification of Animals

Question

Which of the following represents the correct match of a feature with the given set of animals?

Moderate

A

Metagenesis – Obelia, Physalia, Pleurobrachia
B

Choanocytes – Spongilla, Euspongia, Adamsia
C

Sexual dimorphism – Ascaris, Wuchereria, Ancylostoma
D

Parapodia – Nereis, Pheretima, Hirudinaria

Solution

In Aschelminthes, males and females are distinct. Often females are longer than males. Metagenesis is not exhibited by Pleurobrachia. Choanocytes are absent in Adamsia. Parapodia are absent in Pheretima and Hirudinaria.

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