Answer:
able to reproduce, needs nutrients in order to live, growth, able to move, gets rid of waste
By primary succesion. Which is when new substrate is deposited.
D. so the exchange of gases and nutrients can happen
Answer:
A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions.
