B) Brain...spinal cord, for some reason I keep ending up on questions you've asked.
Answer:
uhhh you answered ur own question?
Explanation:
Answer:
The speed at which your heart beats at a rested time, not moving at all, just calm.
Explanation:
I Hope this helps. Im trying to level up so I'd appreiciate it if you marked me as brainliest. Thank you!
The cardiovascular system transports oxygen to cells through blood and takes away carbon dioxide from the cells.
Hope this helps... mark as Brainliest plz
A. Lungs because thats your respiratory system
