S - shaped growth curve is formed in :

Options

A. Logistic growth
B. Exponential growth
C. Both (1) and (2)
D. None - realistic growth

Answer

To answer the question regarding the formation of an S-shaped growth curve, we can break down the explanation into clear steps:

### Step-by-Step Solution:

1. **Understanding the S-shaped Growth Curve**:
- The S-shaped growth curve, also known as the logistic growth curve, represents how a population grows over time when it is introduced to a new environment.

2. **Initial Phase of Growth**:
- Initially, when a population is introduced to a new area, the growth is very slow. This is due to the limited number of individuals and the time taken for them to reproduce.

3. **Exponential Growth Phase**:
- After the initial slow growth, the population enters a phase of rapid increase known as the exponential growth phase. During this phase, resources are abundant, and the population can grow at its maximum rate.

4. **Stationary Phase**:
- Eventually, as resources become limited, the growth rate slows down and reaches a point where it stabilizes. This is known as the stationary phase, where the population size remains relatively constant over time.

5. **Conclusion**:
- The S-shaped growth curve is characteristic of logistic growth, which occurs when resources are limited. Therefore, the correct answer to the question is that the S-shaped growth curve is formed in **logistic growth**.

### Final Answer:
- The S-shaped growth curve is formed in **logistic growth**.

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