Cephalisation, the clustering of neurons and interneurons in the anterior part of the animal, is apparent in ________.
I. mammals
II. cnidarians
III. Planaria
IV. star fish
A) I and II
B) III and IV
C) I and III
D) II and IV

Question

Quizplus · Accepted Answer

Cephalisation is observed in mammals (I) and Planaria (III). Cnidarians (II) and starfish (IV) do not show distinct cephalisation.

Cephalisation, the Clustering of Neurons and Interneurons in the Anterior