An instructor compares earthworms and insects in a unit on metamerism and tagmatization. The best answer is:

Correct Answer: C

segmentation evolved with different outcomes in annelids and arthropods

Both annelids and arthropods show segmentation, but arthropods often fuse segments into specialized tagmata and appendages, while annelids retain many more similar repeated segments. This MCQ belongs to the Comparative anatomy topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.