While viewing a picture of a three-week-old embryo, Dr. Pecoraro points to something and says, "This structure will soon become a tube from which the brain and spinal cord will develop." Dr. Pecoraro is pointing at
A)the neural plate.
B)the corpus callosum.
C)the frontal cortex.
D)an axon.

Question

Quizplus · Accepted Answer

The neural plate is a structure that forms during embryonic development and will eventually become the neural tube. The neural tube is the precursor to the brain and spinal cord, so as Dr. Pecoraro is pointing to a structure that will become the tube from which these structures develop, the correct answer is A) the neural plate.

While Viewing a Picture of a Three-Week-Old Embryo, Dr