Suppose that a few individuals of a lizard species are transported on a log that floats from the mainland, where the lizard is a
bundant, to a distant island, where prior to this event no lizards (of any species) existed. The environmental conditions on the island are similar to those on the mainland. A small population of this lizard becomes established on the island; within a few years, allele frequencies in the island population differ greatly from those in mainland populations. What is the most likely cause of the genetic differences between the island and mainland populations?
Genetic drift is a change in the frequency of an allele within a population over time. There are no environmental influences that cause genetic drift to occur.
Newton's third law of motion is For every action, there is an equal and opposite reaction.
Explanation:
So if you throw a tennis ball and then hit it with a tennis racquet then the action would be the tennis ball and the equal and opposite reaction woul be the tennis ball bouncing off of the tennis racquet.
