Which statement would least likely be used to describe variation?
variations are inherited differences between individuals of the same species.
variations that decrease reproductive success are more likely to be passed on.
variations may result in changes to an entire population after many generations
variations provide some individuals with an advantage.

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.

the man is bald so he has no hair to get wet

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

more words for this could be abiotic and biotic

abiotic: living organisms within an ecosystem

biotic: non-living organisms within an ecosystem