A neuroscientist analyzes the central nervous system of a 3-week-old human embryo.She is MOST likely to observe:
A)only a neural tube.
B)the beginnings of forebrain and hindbrain development.
C)the major subdivisions of the hindbrain but not the forebrain.
D)the major subdivisions of the forebrain but not the hindbrain.

Question

Quizplus · Accepted Answer

At 3 weeks of embryonic development, the central nervous system is primarily characterized by the formation of the neural tube, which will later differentiate into more complex structures like the forebrain and hindbrain.

A Neuroscientist Analyzes the Central Nervous System of a 3-Week-Old