Genetic variation allows for mutations to occurs where survival of the fittest occurs. This makes sure that the most adapted creatures survive and are able to pass their genes on to offspring. Thus causing evolution.
The basic functions of the United States government are defined in the Preamble to the U.S. Constitution.<span> The Supreme Court is one example of how the U.S. government</span>
What is cell specialization?
Answer: cell specialization is an adaptation to do a particular job in a cell
