In a specimen-based viva, the examiner describes this case: segments of an insect are grouped into head, thorax, and abdomen with different functions. Choose the concept that fits it best.

Correct Answer: C

tagmatization

Tagmatization is the grouping of segments into specialized body regions called tagmata. It is a major reason for arthropod functional diversity. This MCQ belongs to the Arthropoda topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.