The appearance of which of the following structures has been widely accepted as the key event in the evolution of vertebrates?
A)neural crest
B)neural groove
C)neural tube
D)spinal cord
E)placenta

Question

Quizplus · Accepted Answer

The neural crest is a group of cells that forms along the edges of the neural tube and gives rise to a diverse range of structures in vertebrates, including parts of the skull, peripheral nervous system, and other tissues. Its evolution is considered crucial for the development of vertebrate complexity.

The Appearance of Which of the Following Structures Has Been