Question

4. Biotic factors that affect other organisms in an ecosystem include all but which of the following factors? a. Symbiosis b. Predation C. Volcanic eruptions d. Competition​

Answer 1

Below

Step-by-step explanation:

The answer is C, because ecosystems include:

Competition

Predation

Consumption

Parasitism

Disease

Symbiosis

Answer 2

I think its d but im not sure