Question

what can be changed by natural selection, gene flow, and genetic drift? allele frequency parallel evolution osmosis

Explanation:

Natural selection, gene flow, and genetic drift are evolutionary forces. Natural selection favors alleles that enhance survival and reproduction. Gene flow introduces new alleles from other populations. Genetic drift randomly changes allele frequencies, especially in small populations. All three act on allele frequencies. Parallel evolution is a pattern of evolution, not directly changed by these forces. Osmosis is a physical process in cells, unrelated to evolutionary genetics.

Answer:

Allele frequency