Typical growth curve in plants is

Options

A. Stair-steps shaped
B. Parabolic
C. Sigmoid
D. Linear

Answer

To answer the question regarding the typical growth curve in plants, we can break down the solution into several steps:

### Step-by-Step Solution:

1. **Understanding Plant Growth**:
- Plant growth is a complex process influenced by various factors such as nutrients, water, light, and space.

2. **Growth Curves**:
- A growth curve represents the growth of an organism over time. In plants, this can be depicted graphically.

3. **Types of Growth Curves**:
- There are several types of growth curves, including linear, parabolic, and sigmoid curves. Each type represents different growth patterns.

4. **Sigmoid Growth Curve**:
- The typical growth curve for plants is the sigmoid growth curve. This curve is characterized by four phases: lag phase, exponential (log) phase, stationary phase, and death phase.

5. **Phases of the Sigmoid Curve**:
- **Lag Phase**: Initial slow growth as the plant acclimatizes to its environment.
- **Exponential Phase**: Rapid growth as resources are abundant.
- **Stationary Phase**: Growth slows as resources become limited.
- **Death Phase**: Decline in growth due to depletion of resources.

6. **Conclusion**:
- The typical growth curve in plants is sigmoid, which reflects the influence of environmental factors such as food and space on growth.

### Final Answer:
The typical growth curve in plants is a sigmoid growth curve.

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