Brain cells die quickly if their what supply is cut off
energy breathe Energy. alveoli cut CO 2 loss blood
A B C D E F G H
Blood carries oxygen to the brain.
Brain cells die quickly if their blood supply is cut off
Brain cells die quickly if their what supply is cut off (A) energy (B) breathe (C) Energy. (D) alveoli (E) cut (F) CO 2 (G) loss (H) blood