Genetic variation is a measure of the genetic differences that exist within a population. Genetic variation is essential for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population. Genetic variation is caused by: mutation.
Eating fruits and vegetables can protect us from diseases. They contain important vitamins and minerals. Since they are low on calories, they help in weight management. It is nutritious and energizing. They contain their own combination of phytochemicals and nutrients that work together to promote good health.
Answer:
i think it be glacier ...............
Answer:
a) virtual and erect
Plane mirrors are the only type of mirror for which a real object always produces an image
A. Stretching your legs before a run. You're creating tension by applying force to pull your tendons and ligaments.
