Negative Feedback. A negative feedback system has three basic components: a sensor, control center and an effector. ... If the value deviates too much from the set point, then the control center activates an effector. An effector causes a change to reverse the situation and return the value to the normal range.
The answer is C. Gorillas are more closely related because they are apart of the Great Ape family which includes Gorillas, Chimpanzees, Humans, and Orangotangs
Create a diagram that shows the dominant on a X-axis and the recessive on the Y-axis. Then simply combine the each dominant and recessive. You should end up with Xx, Xx, Xx and Xx