brainiac6390 brainiac6390 07-06-2016 Biology Answered Which of the following is an example of geographic isolation?A population of salmon dies out because they cannot find food.A zebra with a long mane moves into a population of zebras with short manes.A population of squirrels is separated by a mountain range and cannot interbreed.Two populations of rabbits are forced together after a flood.--Which of the following statements is true?Extinction speeds up the evolution of other species.Earth has only experienced one mass extinction in its history.Speciation is caused by a reduction in gene flow.Genetic diversity can be increased by genetic drift.----Low genetic diversity _____.helps a population surviveincreases the risk of extinctioncan cause genetic driftis the result of genetic mutation-----A species is endangered if it _____.no longer exists anywhere on earthis in danger of becoming extinctis not native the environmenthas high genetic diversity--Which of the following statements is true?Gene flow evens out genetic differences between populations.Genetic drift increases the genetic differences between populations.Natural selection, mutation, and genetic drift are random events.The bottleneck effect increases the genetic diversity of a population.
