Fundamental unit of nature is

Options

A. Organisms
B. Environment
C. Ecosystem
D. Ecology

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the fundamental unit of nature. This requires us to identify the basic building block or the smallest unit that contributes to the structure of nature.

2. **Identifying the Fundamental Unit**: In ecology, the fundamental unit of nature is recognized as the "ecosystem." An ecosystem encompasses all living organisms (biotic factors) and their physical environment (abiotic factors) interacting as a system.

3. **Hierarchy of Biological Organization**: To better understand the concept, we can look at the hierarchy of biological organization:
- **Organism**: The individual living entity.
- **Population**: A group of organisms of the same species living in a particular area.
- **Community**: Different populations of various species that live together in a defined area.
- **Ecosystem**: A community of living organisms interacting with their environment.
- **Biosphere**: The global sum of all ecosystems, where life exists on Earth.

4. **Conclusion**: Therefore, the fundamental unit of nature is the ecosystem, as it is the basic unit that includes both living and non-living components and their interactions.

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