Describe the process of genetic evolution through gene pools, genetic drift and mutations.

Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.

4, two dominant and two recessive

It's either -limiting factors or -scarce resources but i'd go with my first answer since the food and water are abundant they really aren't scarce