Answer:
d
Explanation:
mountian climbers are hard man
Mitochondria...
Mitochondria are known as the powerhouses of the cell. They are organelles that act like a digestive system which takes in nutrients, breaks them down, and creates energy rich molecules for the cell. The biochemical processes of the cell are known as cellular respiration.
Beta-adrenergic blockers will reduce the heart's demand for oxygen
Answer:
A
Brainliest is greatly appreciated
Answered by: Skylar
6/9/2020
