3. Any changes in abiotic factors will affect the whole ecosystem. Which of the following is an abiotic factor that may affect the population of organisms? A. Extreme temperatures B. Food availability C. Parasites D. Predators 4 Changes in abiotic factor is due to climate change and natural disasters that affect the population of organisms. which is NOT an example of changes in abiotic factor? A. drought B. flashflood C. temperature D. volcanic eruption