I think someone relieve the heart rate of the heart rate during exercise
Answer:
sun
Explanation:
it gives energy to all things. light energy.
Answer:
B
Explanation:
The cell membrane is like a gate around the cell, it only lets certain substances come in and out of the cell.
ATP, the molecule of energy, has three phosphates (hence the “T” and “P”). When one phosphate group is BROKEN OFF, it releases lots of ENERGY.
The cytoplasm fills the cell and is surrounded by the cell membrane. :)