It would be d. in your conclusion you want to state if your hypothesis was right or wrong and why.
Answer:
hope it helps
Explanation:
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.
So it can help circulate throughout the body blood stream
please mark as brainliest if im correct
please correct me if im wrong
