Answer:
D) viruses.
Explanation:
It's D) viruses, I know this because I took the test on usatestprep and the correct answer was D) viruses.
Ecosystems are influenced by both biotic and abiotic factors. Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.
c
A
i guessed ona quiz and got it right.