They all keep the plant alive and healthy! rawr XD
I think it is increase the amount of substrate.
Answer:
All of the above are involved in moving water up to the branches and leaves
Abiotic means non-living. So the correct answer is "the lack of oxygen in coastal waters"
Answer: An external factor caused damage to the nerve cells. However, the injection of new cells into the injured area prompted a beneficial change. The injured cells received proteins that decreased inflammation and pain in the mice.
