A. they lower the activation energy so less energy is needed
Catabolism (a form of metabolism in which cells are breaking down larger units into smaller units).
Another answer is cellular respiration
The nucleus of an atom contain protons and neutrons, which make up most of the mass of an atom.
The answer would be 2 and 3 ( 2nd answer choice)
Hello!
If the number of snakes increased, the number of rabbits decrease.
If the number of insect eating birds decreased, the amount of grass increases.
Hope this helped!
