Which of these dependencies is true in an ecosystem?

Options

A. Only flora and the fauna depend upon each other.
B. The living and non-living components depend upon each other.
C. Only the living components depend on the non-living components.
D. Only the flora, fauna and the microorganisms depend upon each other.

Answer

To determine which dependencies are true in an ecosystem, we can analyze the given options step by step.

### Step-by-Step Solution:

1. **Understanding Ecosystem Components**:
- An ecosystem consists of both living (flora and fauna) and non-living components (like water, soil, air, and minerals).
- Flora refers to plant life, while fauna refers to animal life.

2. **Evaluating the First Option**:
- The first option states that "only Flora and Fauna depend on each other."
- This is incorrect because while plants and animals do depend on each other, they also rely on non-living components for survival (like sunlight, water, and nutrients).

3. **Evaluating the Second Option**:
- The second option states that "the non-living and the living components depend on each other."
- This statement is true. Living organisms (flora and fauna) depend on non-living components for resources, and non-living components are affected by the activities of living organisms.

4. **Evaluating the Third Option**:
- The third option claims that "only the living component depends on the non-living component."
- This is also incorrect because, while living organisms do depend on non-living components, the reverse is true as well; non-living components are influenced by living organisms.

5. **Evaluating the Fourth Option**:
- The fourth option states that "only the Flora, Fauna, and microorganisms depend on each other."
- This is misleading because, while flora, fauna, and microorganisms do depend on each other, they also depend on non-living components, making this statement incomplete.

### Conclusion:
The only true dependency in an ecosystem from the given options is the second one: "the non-living and the living components depend on each other."

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