i dont care but i so it does not float away oh by the way jk about the i dont care hahahahahahahhahaha its so i have 20 words whaen i finsh typing so dont hate me sorry :) lol
The answer for number 3 is D, and the answer for number 2 is A.
I think the answer is B, however there is a possibility it is C
Organ system. The blood vessels, blood, and the heart are organs which work together to form the circulatory system.