Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).
Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Genetic drift can have major effects when a population is sharply reduced in size by a natural disaster (bottleneck effect) or when a small group splits off from the main population to found a colony (founder effect).
The answer is black ! Hopefully this helped
<span>It is important to have an instructor when you start a weight training program because they will assess you to you daily routine. The instructors will help you lose or gain weight by giving you schedule of works and plans for your food. They are important because they are expert on how you could adopt to the change of your daily routines.</span>
The correct answer is D.
An internal pressure that will most likely create conflict would be disagreeing about which school kids should attend. An internal pressure is one that is found amongst the family members and affects them all. Due to Andy losing his job and them having to relocate with extended family members the chances are that the options for schools for the kids would cause disagreement because there are now other factors to consider like influences from extended family members, the local area schools which are the only choice for their kids now and which might not be good schools, they more than likely can't afford to home school and so forth.