Which is a biotic factor that affects the size of a population in a specific ecosystem?(1 point)

Question

Responses

​​​​​​average temperature of the ecosystem
​​​​​​average temperature of the ecosystem

​​​​​​type of soil in the ecosystem
​​​​​​type of soil in the ecosystem

​​​​​​number and kinds of predators in the ecosystem
​​​​​​number and kinds of predators in the ecosystem

​​​​​​concentration of oxygen in the ecosystem

Answer 1

The correct response is:

number and kinds of predators in the ecosystem

Biotic factors are the living components that affect population sizes, and predators are a key example of such factors. The other options listed (average temperature, type of soil, and concentration of oxygen) are abiotic factors.