The Opponent-Process theory of color vision holds that we perceive colors because of pairs the receptors that make antagonistic responses. <span />
<span>The answer is B. Human homeostasis alludes to the body's capacity to physiologically control its inward condition to guarantee its soundness in light of variances in the outside condition and the climate. The support of sound circulatory strain is a case of homeostasis.</span>
the answer is relative frequency ^^
Hormones is the term you are looking for, but I may be wrong
