Answer:
Temperature
Explanation:
Temperature ensures both biotic and abiotic
Answer: E.
Explanation: Decreasing greenhouse gasses is good. You could always use the process of elimination for this! All of these are harmful to the environment except the decreasing of greenhouse gasses!
Stomata allow for gas exchange on a leaf.
xylem and phloem are tissues that transport water and food throughout the plant.
pollen tubes transport the sperm to the egg.
Lack of light in the depths of the ocean does not mean life does not exist at such depths. Marine biologist have found numerous interesting (and slightly nightmareish) life forms at various depths.