Answer: Temperature.
- A Light
- B Soil pH
- C Temperature
- D Wind speed
Correct answer: C. Temperature
Explanation: Temperature is regarded as the single most important abiotic factor because it directly affects enzyme activity and the metabolic rate of organisms.
Exponential growth produces an ever-steepening J-curve with no limit, an unrealistic long-term model; logistic growth produces an S-curve that levels off at the carrying capacity K, as growth rate (K−N)/K shrinks to zero once resources are fully used.
Concept context
How organisms interact with abiotic factors and respond to stress, plus population attributes, growth models, and interspecific interactions such as predation, competition, and mutualism.