Polygenic traits, traits determined by more than one gene, often have phenotypes that are distributed on a bell curve. occurs when one end of the bell curve is better adapted to the environment than the other.

directional selection Hardy-Weinberg equilibrium sympatric This is allopatric speciation. This is an example of stabilizing selection in a population because the organisms in the middle of the population have the best fitness for their environment. The five conditions impacting this equilibrium are: mutations, nonrandom mating, genetic drift, migration, and natural selection. Natural selection impacts single-gene traits because of the possible extinction of one trait or increase of another trait. If a trait is found to be not preferable in that environment, it could be eliminated through natural selection. The total allele frequency in the Hardy-Weinberg equilibrium has to equal 1.

Explanation:

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.