The coelom probably evolved in the first annelids
A) as an out-pocketing of the embryonic gut.
B) as an adaptation for burrowing.
C) as part of the vascular system to enable transportation of food materials.
D) much later than metameric segmentation.
E) after the evolution of the vascular system.

Question

Quizplus · Accepted Answer

The coelom likely evolved as an adaptation for burrowing, providing a hydrostatic skeleton that aids in the movement through substrates.

The Coelom Probably Evolved in the First Annelids