Answer:
Most genes contain the information needed to make functional molecules called proteins.
The answer is Walter Hess
Hess manipulated the diancephalon of the brain of cats by inserting metal rods in the hypothalamus regions of the brain, where the diencephalon is located, and passing electrical current through the rods to the brain region. He noticed that the cats, among other complex behavioral changes, would curl up and sleep.
The animal’s anatomy is specifically evolved in and thus tied in with it physiology, thus affecting its interactions with the environment.
