Genetic drift happens by chance and can make an allele disappear completely from a gene pool, even if it was a desirable trait that should have been passed down to offspring. The random sampling style of genetic drift shrinks the gene pool and therefore alters the frequency the alleles are found in the population.
Hello there ^ _ ^
The correct answer is A
Genes and environment are both major influences.
Please trust my answer.
I would think A - Volcanic eruptions can cause both global warming and global cooling.
1) is right option. The fossils are an extinct specie of elephants, and they're related to present day elephants.
<span>that would be 200,000 ybp</span>
