Individuals that carry a particular allele may have more descendants than other individuals, resulting in the allele becoming more common. Which process causes random alleles to become more common within a population?

gene shuffling

directional selection

natural selection

genetic drift

genetic drift

Explanation:

When genetic drift happens, a random allele becomes more common just by chance. Unlike natural selection, there is no benefit from the random allele that helps the organism to have a better survival rate in genetic drift. It simply coincidence without any cause. Genetic drift will less likely happen if the population bigger compared to a smaller population.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it