Concept:Abiotic ecological factors are the non-living physical and chemical parts of the environment that influence living organisms.
Explanation:Examine each option carefully.
Competition is a struggle between living organisms for limited resources, so it is a biotic factor.
Predation is a feeding interaction in which one living organism hunts another, so it is also a biotic factor.
Symbiosis is a close relationship between living organisms, which makes it a biotic factor as well.
Temperature is a physical condition of the environment and is not living, so it is the only abiotic factor listed.
Therefore, temperature is the correct answer.
Answer:Option A: Temperature.