The pyramid of numbers in grassland ecosystem will be-

Options

A. A) Linear
B. B) Upright
C. C) Irregular
D. D) Inverted

Answer

To determine the shape of the pyramid of numbers in a grassland ecosystem, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Pyramid of Numbers**: The pyramid of numbers represents the number of organisms at each trophic level in an ecosystem. It typically shows the relationship between producers (plants) and consumers (herbivores and carnivores).

2. **Identify the Trophic Levels in Grassland Ecosystem**:
- **Producers**: In a grassland ecosystem, the primary producers are grasses and other plants. They form the base of the pyramid.
- **Primary Consumers**: These are herbivores that feed on the producers, such as rabbits, deer, and insects.
- **Secondary Consumers**: These are carnivores that eat primary consumers, such as foxes or birds of prey.
- **Tertiary Consumers**: These are top predators that eat secondary consumers, such as larger carnivores.

3. **Analyze the Number of Organisms at Each Level**:
- In a grassland ecosystem, the number of producers (plants) is significantly higher than the number of primary consumers (herbivores).
- The number of primary consumers is higher than the number of secondary consumers (carnivores).
- The number of secondary consumers is higher than the number of tertiary consumers (top predators).

4. **Determine the Shape of the Pyramid**:
- Since the number of producers is greater than the number of primary consumers, and this trend continues up the trophic levels, the pyramid will have a broad base and taper towards the top.
- This results in an **upright pyramid** shape, where the base (producers) is wider than the top (tertiary consumers).

5. **Conclusion**: Based on the analysis, the pyramid of numbers in a grassland ecosystem is **upright**.

### Final Answer:
The pyramid of numbers in a grassland ecosystem will be **upright** (Option B).

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