Answer:
Energy comes from different sources such as oil, coal the wind and the sun.
Answer: She should Avoid Contact with other people's bodily fluids.
Explanation: Hope that helps! (:
Genetic variation is an effect
Answer: Gene flow is the movement of alleles from one population to another as a result of the migration of individuals. This causes a reduction in the differences between populations. ... Genetic drift is a change in allele frequencies due to change of events in a small breeding population.
