<span>The natural selection.
Natural selection is the differences in survival and reproduction as the consequence of differences in phenotypes.
In natural selection, genotype variations that will increase the chance of survival and reproduction of some organism are preserved and will be inherited. So genotypes variations are responsible for phenotypes and, thus, help the survival of species in a particular location.</span>
Chemical energy is the potential of a chemical substance to undergo a chemical reaction to transform into other substances. Examples include batteries, food, gasoline, and etc. Breaking or making of chemical bonds involves energy, which may be either absorbed or evolved from a chemical system.
Would advise you use your own words
Answer:
A watershed – the land area that drains to a stream, lake or river – affects the water quality in the water body that it surrounds. ... They are influenced by naturally varying lake levels, water movement to and from groundwater, and amount of stream flow.
Explanation:
