Evidence suggests that many neurons die during development because
A) they are genetically programmed to die.
B) of their inability to compete successfully for their target's life-preserving chemicals.
C) of failures of regeneration.
D) both A and B
E) both B and C

Question

Quizplus · Accepted Answer

Neurons die during development primarily because they are genetically programmed to die (apoptosis) and due to their inability to compete successfully for neurotrophic factors, which are life-preserving chemicals provided by their target cells.

Evidence Suggests That Many Neurons Die During Development Because