A population has a stable growth. The shape of the pyramid will be?

Options

A. Triangular
B. Upright
C. Urn-shaped
D. Bell-shaped

Answer

To determine the shape of the population pyramid for a population with stable growth, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Population Growth Types**:
- Population growth can be classified into three main types: expanding, stable, and declining. Each type has a characteristic shape of the population pyramid.

2. **Identifying the Characteristics of Stable Growth**:
- A stable population growth indicates that the birth rate is approximately equal to the death rate. This means that the population size remains relatively constant over time.

3. **Analyzing the Population Pyramid Shapes**:
- **Expanding Population**: This type of pyramid is broad at the base and narrows towards the top, indicating a high birth rate and a large proportion of young individuals.
- **Stable Population**: This pyramid has a more uniform distribution across age groups, typically resembling a bell shape. It indicates that there are balanced numbers of individuals in each age group, with fewer young and old individuals compared to those in the reproductive age group.
- **Declining Population**: This pyramid is inverted or has a shape that resembles an "inverted triangle," indicating a higher number of older individuals and fewer young individuals.

4. **Conclusion**:
- Since the question states that the population has stable growth, the shape of the population pyramid will be **bell-shaped**. This indicates a balanced distribution of age groups, with a stable number of individuals in each reproductive phase.

### Final Answer:
The shape of the pyramid for a population with stable growth will be **bell-shaped**.

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