Trace a drop of blood from the heart to the top of the foot by naming the blood vessels from the aorta to the artery that can be felt on the top of the foot (dorsalis pedis artery).

1.Arch of Aorta

2.Thoracic Aorta

3.Abdominal Aorta

4.Common/external iliac artery

5.Femoral artery

6.Popliteal artery

7.Anterior tibial artery

8.Dorsalis pedis artery.

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Explanation:

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).