Answer:
Mass is conserved in living systems through the processes of photosynthesis, cellular respiration, and the carbon cycle. It is demonstrated in cellular respiration through the process of braking down food to provide energy and releasing carbon dioxide.
Explanation:
The answer is A it's the action of purifying water
Answer - C
Nonvascular plants do not consist of xylem and phloem and they have their own mechanism of action for transport of water and other nutrients to their cells.
(4) organic catalysts
The job of catalysts in chemical reactions is to make the reaction go faster by lowering the amount of energy needed to activate the reaction. If less energy is needed for the reaction to occur, then the reaction can go faster because a large energy build-up is not needed.