the fertility of the soil the population of producers in the area the amount of food scraps left by predators the rate at which primary consumers moved into the area
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Different species of herbivorous rodents lived in the same ecosystem. Which factor most likely increased, causing more competition for resources among the rodents?
Possibilities:
- the fertility of the soil
- the population of producers in the area
- the amount of food scraps left by predators
- the rate at which primary consumers moved into the area

the rate at which primary consumers moved into the area