Which of the following increases genetic variation by forming entirely new alleles? Natural selection
Genetic drift
Mutation
Gene flow

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

Describe the two types of vascular tissue