Human population shows

Options

A. J- shaped growth curve
B. Z- shaped growth curve
C. S-shaped growth curve
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding the Human Population Growth:**
- The human population growth can be represented graphically to understand its dynamics over time.

2. **Identifying the Type of Curve:**
- The growth of the human population is characterized by a sigmoid curve, also known as an S-shaped curve.

3. **Drawing the Sigmoid Curve:**
- On a graph, the x-axis represents time, while the y-axis represents population size.
- The curve starts slowly, indicating a lag phase where the population grows slowly.

4. **Identifying the Phases of Growth:**
- **Lag Phase:** Initially, the growth is slow due to limited resources and environmental factors.
- **Exponential Phase:** After the lag phase, the population growth accelerates rapidly, leading to a peak in the curve.
- **Stationary Phase:** Eventually, the growth rate declines and stabilizes, leading to a stationary phase where the population size levels off.

5. **Distinguishing from J-shaped Curve:**
- Unlike the J-shaped curve, which indicates a sudden and exponential increase in population without a lag phase, the human population growth is gradual and follows the sigmoid pattern.

6. **Conclusion:**
- Therefore, the correct representation of human population growth is the S-shaped growth curve.