In each local environment, populations of living organisms have evolved to possess the traits necessary to survive and reproduce. This concept is called
A) natural selection. B) genetic drift. C) the bottleneck effect. D) gene flow. E) antigenic shift.
Movement of individuals into or out of the population, called gene flow, impacts evolution of populations because
A) it can lead to extinction of one or more populations. B) it may cause genetic drift. C) it leads to a redistribution of alleles. D) adaptive radiation results. E) a founder effect will occur.
In the year 2317, a group of human pioneers decide to colonize Mars. The distance between Mars and Earth prevents the possibility of new members joining the colony or the members of the colony interbreeding with humans on Earth. This situation is an example of
A) extinction. B) the bottleneck effect. C) random mutation. D) continental drift. E) the founder effect.