During a Zoology practical, a flatworm shows concentration of nervous tissue and sensory organs at the anterior end. Select the most accurate identification.

Correct Answer: D

cephalization

Cephalization is the concentration of sensory organs and nervous tissue near the head or anterior end. It is strongly associated with bilateral symmetry and directional movement. This MCQ belongs to the Animal architecture topic in Animal Diversity-I and is written to test concept understanding rather than memorized wording.