How does natural selection act to change allele frequencies?Multiple choice question.favors phenotypes that increase reproductive successeliminates alleles by random chancecreates new allelesmoves new alleles into a population

Natural selection acts to change allele frequencies by favoring phenotypes that increase reproductive success. This process works as follows:

1. Variation: In any population, individuals have different traits. These traits can be physical (like size and color) or behavioral. These traits are controlled by genes, which are passed from parents to offspring during reproduction. Different versions of the same gene are called alleles.

2. Overproduction: Most species produce more offspring than can survive. This leads to a struggle for survival, with only a limited number of individuals able to survive to reproductive age.

3. Survival of the Fittest: Individuals with traits that give them an advantage in their environment are more likely to survive and reproduce. This is known as "survival of the fittest". The advantageous traits are often controlled by certain alleles.

4. Reproduction: Individuals that survive and have the advantageous traits will reproduce and pass on these traits (and the alleles that control them) to their offspring.

5. Change over Time: Over many generations, the alleles that control advantageous traits increase in frequency in the population. This is because individuals with these alleles are more likely to survive and reproduce. Over time, this can lead to significant changes in the traits of a population, a process known as evolution.

So, the correct answer to your multiple-choice question is "favors phenotypes that increase reproductive success".