Answer:
During exercise, your heart typically beats faster so that more blood gets out to your body. Your heart can also increase its stroke volume by pumping more forcefully or increasing the amount of blood that fills the left ventricle before it pumps.
The cell organ that makes proteins is the ribosomes
hope this helps :)
Fish die, since they can't live in water that has acid.
Hope this helped! :D
It means that a food has all the essential amino acids a human body needs
Like:
meat
poultry
fish
eggs
milk
and cheese
