Question

How are the circulatory system and the respiratory system related in humans?

A. they are not interrelated because body systems cannot interact with one another.
B. they are interrelated because the circulatory system provides oxygen to the lungs
C. they are interrelated because the respiratory system provides oxygen to the heart
D. they are not interrelated because the heart received oxygen from the skin.
PLEASE HELP QUICK

Answer 1

C.

Step-by-step explanation:

The respiratory system brings in oxygen through breathing and the circulatory system disperses oxygen in the blood.

Answer 2

I'd say the answer is C but I'm not 100% sure. If not C then maybe B