A flour beetle population was tracked in a sealed jar of constant volume. Population sizes over 30 weeks are shown.
The S-shaped curve indicates:
- A
Population crash and extinction.
- B
Random fluctuation.
- C
Exponential growth without limits.
- Dcheck_circle
Logistic growth as the population approaches its carrying capacity (K).
Explanation
The transition from exponential to leveling growth at a stable upper bound (K) defines logistic dynamics under density-dependent constraints.