HEL What is the amplitude?
A. the distance from the center of the wave to the crest or the trough.
B. The distance between the two crests
C. The highest point in the wave
D. The lowest point in the wave

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

What is the next step in muscle contraction after the actin changes shape? (apex)

Factors that can increase mutation rates a. high temps b. low temps c. food additives d. uv rays