brain cells die quickly if what supply gets cut off?
alveoli blood CO 2 hydrogen Air Energy. electric pulses carbon dioxide
A B C D E F G H
Blood carries oxygen to the brain.
brain cells die quickly if blood is cut off
brain cells die quickly if what supply gets cut off? (A) alveoli (B) blood (C) CO 2 (D) hydrogen (E) Air (F) Energy. (G) electric pulses (H) carbon dioxide