Cognitive development causes the need for synaptic pruning because as the brain begins to develop deeper connections, the pruning of the more simple functions begins and more complex connections start being made.
If they can learn more about how the human body ages,why some people live longer than others then perhaps they could apply these different facts in order to eventually discover our lifespan.
Respiration is a pattern of
The answr answer should be ACTIVE IMMUNITY
HOPE THIS HELPS!