Answer:
Explanation:
Catalyst is a substance that influences the reaction but does not participate in the reaction
I believe the correct answer from the choices listed above is the third option. It is oxygen that is a necessary reactant for cellular respiration to occur. Cellular respiration, in a sense, is breaking down sugar in the presence of oxygen. Hope this answers the question.
Answer:
A.
Explanation:
It shows a clear view of what a group of cells of a plant would be like.
Heart,vessels,circulating fluids
