Natural selection does not

a make species stronger over time
b select what a species needs
c cause changes in a population
d increase how often favorable traits are passed on

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

"a.) well–developed vascular system."