Which difference distinguishes protostomes from deuterostomes?
A)One has a nervous system,and one doesn't.
B)Their embryonic development is different.
C)One has a circulatory system and one doesn't.
D)One has cephalization and one doesn't.
E)One has a notochord and one doesn't.

Question

Quizplus · Accepted Answer

The main difference between protostomes and deuterostomes is the way their embryonic development progresses. In protostomes, the mouth develops before the anus, while in deuterostomes, the anus develops before the mouth.

Which Difference Distinguishes Protostomes from Deuterostomes