Earthworms and squid have clusters of neurons called
A) ganglia.
B) the central nervous system.
C) the peripheral nervous system.
D) the spinal cord.
E) a nerve net.

Question

Quizplus · Accepted Answer

Earthworms and squid both have ganglia, which are clusters of neurons that serve as their primary control centers for sensory and motor functions. This is different from more complex animals like mammals, which have a centralized brain as their primary control center. The nerve net, peripheral nervous system, spinal cord, and central nervous system are all terms that can be used to describe various parts of the nervous system in different animals, but ganglia are the specific clusters of neurons that are characteristic of earthworms and squid.

Earthworms and Squid Have Clusters of Neurons Called