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.
Your circulatory system delivers oxygen-rich blood to your bones. Meanwhile, your bones are busy making new blood cells. Working together, these systems maintain internal stability and balance, otherwise known as homeostasis
Explanation:
I would go with B considering he has never tried it he is with a group of guys telling how great it is and he wouldn't want to feel left out of that circle
I believe the answer is D., metastases.
Answer:
there bodies and what it needs.
Explanation:
hope this helped!
p.s it would be cool if you gave me brainliest.