Which of the following trends in evolution of the nervous system refers to the formation of a distinct head that has a large concentration of neurons?
A) Cephalization
B) Ganglion
C) Brain
D) Peripheral nervous system
E) Central nervous system

Question

Which of the following trends in evolution of the nervous system refers to the formation of a distinct head that has a large concentration of neurons?  
A) Cephalization
B) Ganglion
C) Brain
D) Peripheral nervous system
E) Central nervous system

Quizplus · Accepted Answer

Cephalization refers to the evolutionary trend where the nervous system becomes concentrated in a distinct head region, resulting in the formation of a brain with a large concentration of neurons. Ganglion refers to a cluster of nerve cell bodies outside the central nervous system. Peripheral nervous system refers to the nerves outside of the brain and spinal cord. Central nervous system refers to the brain and spinal cord.

Which of the Following Trends in Evolution of the Nervous