Answer:
The flow of individuals in and out of a population introduces new alleles and increases genetic variation within that population. Mutations are changes to an organism's DNA that create diversity within a population by introducing new alleles.
Explanation:
Answer:
Energy is lost at each trophic level and between trophic levels as heat and in the transfer to decomposers ([Figure 4]). Thus, after a limited number of trophic energy transfers, the amount of energy remaining in the food chain may not be great enough to support viable populations at yet a higher trophic level.
Explanation:
Why would you have to decrease the volume of the music? I mean you would be able to hear the engine louder but the volume would stay the same
Sickle cell mutation is most common in Africa and southern half of Europe. The reason for this is because, natural selection made areas with high concentration and history of diseases such as cholera, tuberculosis, yellow fever, and much more.