Annelids and arthropods were thought to be closely related in one sense because of the character of segmentation.Molecular data has recently shown that
A)segmentation evolved separately in these two groups.
B)arthropods and roundworms are more closely related.
C)annelids are more closely related to flatworms and mollusks.
D)annelids and arthropods have been evolving separately for a long time.

Question

Quizplus · Accepted Answer

Molecular data has shown that segmentation evolved separately in annelids and arthropods, indicating that they are not closely related as previously thought.

Annelids and Arthropods Were Thought to Be Closely Related in One