The fact that choanoflagellates and collar cells of sponges resemble each other supports the inference that ________.
A) choanoflagellates are animals
B) choanoflagellates are more closely related to sponges than they are to protists
C) choanoflagellates and sponges are sister groups
D) choanoflagellates and sponges evolved similar cell structures through convergent evolution

Question

Quizplus · Accepted Answer

The similarity between choanoflagellates and collar cells of sponges suggests that they share a common ancestor and are therefore closely related. The resemblance supports the idea that choanoflagellates and sponges are sister groups.

The Fact That Choanoflagellates and Collar Cells of Sponges Resemble