WVU Bio 117 Exam | Questions & 100% Correct Answers (Verified) | Latest Update | Grade A+

evolution Correct Answer: a change in a population over time natural selection Correct Answer: traits within a population vary, and some individuals leave more offspring than others based on Fitness and selection pressure Five Mechanisms of evolutionary change Correct Answer: natural selection gene flow nonrandom mating genetic drift mutation Fitness Correct Answer: reproductive success 2 3 types of selection Correct Answer: directional stabilizing disruptive directional selection Correct Answer: trend in the bell curve representing the population that leans either to the left or right stabilizing selection Correct Answer: trend in the bell curve representing the population that concentrates near the median disruptive selection Correct Answer: trend in the bell curve representing a population that goes BOTH left and right, leaving those in the middle at a decreased percentage selection pressures Correct Answer: a change within the environment/habitat of a population that could alter the fitness of a certain type of individual. ex. forest fire blackens an area, making dark mice have greater fitness due to their camoflauge