Answer:
Plants, by contrast, breathe through tiny pores called stomata on the underside of their leaves. These pores allow carbon dioxide to enter and oxygen to exit. Plants open and close their stomata in response to changes in their environment so they can get the CO2 they need, and avoid drying out.
Explanation:
Which process is the most responsible for the increase in early Earth's atmospheric oxygen levels?
Photosynthesis
Answer:
D. Parasites take nutrients from another organism's body
Parasites by definition leech off of their hosts by stealing nutrients
Cancer is a mutation that occurs during the cell cycle, usually when it develops and grows it means the mutation was able to go through the cycle undetected at checkpoints so the cell was not destroyed by the lysosomes.
