Birth control, IUD, condoms
I think the correct answer is D...
If you were to stand on your head all the blood would flow to your brain
Answer:
The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide
Explanation:
