The HIV virus is a virus that causes AIDS. The virus attacks a specific type of immune system cell in the body. HIV destroys these cells, making it harder for your body to fight off infections.
Smaller veins called venules then go back into the larger veins that pushes the blood back to the heart
Circulatory system controls all of your actvity and it transfferes blood to your brain so you wont have a stroke
Zoo keeper ............................
9 in fat, 4 protein, and 4 for carbohydrate
