Does phenotypic variation exist between humans? If so, What role

Yes.

You'd have to be blind not to notice phenotypic variation between humans.

>>8193810
No all 7 billion human beans look exactly the same.

Are you retarded?

OP if you still don't understand...take for example Jennifer anistons legs. They're long and slender. Their sole purpose is to create the release of trillions of sperm cells everyday due to a young boys strong sexual appetite

inb4 thread devolves into /pol/tardism

>>8194301
Le ebin <<<</pol/ meme xddddd

>men with huge dicks
>made to have sex with as many partners as possible

>men with small dicks
>made to post stupid threads on 4chan

>>8194301
aaaand another thread being derailed by SJWtard invaders. Internet should be banned for you cancerous losers.

>>8193810
Phenotypes are social constructs.

File: 1467874589834.jpg (67KB, 736x934px) Image search: [Google]

67KB, 736x934px

Yes humans have been shaped by their ecogeographic biomes. Allen's rule applies to their builds regarding surface area and heat transfer. The more north you go, less surface area is advantageous. Its like polar bears vs brown bears but less exaggerated