One of the following is not an Annelida

Options

A. Nereis
B. Earthworm
C. Leech
D. Sea urchins

Answer

D

Explanation

Sea urchins is not an annelids. They called as sea hedgehogs are small spiny globular animals of phylum-Echinodermata. They are found in almost all the oceans. Common colours include black, dull shades of green, olive, brown, purple, blue and red.
Annelids are triploblastic animals having billaterally symmetrical body. They bear metameric segmentation and are the first coelomates. e.g., Nereis, earthworm and leech.