Autecology is the:

Options

A. Relation of a population to its environment
B. Relation of an individual to its environment
C. Relation of a community to its environment
D. Relation of a biome to its environment

Answer

### Step-by-Step Solution:

1. **Understanding Autecology**:
- Autecology is a branch of ecology that focuses on the relationships between individual organisms and their environment.

2. **Defining Key Terms**:
- **Population**: A group of individuals of the same species living in a specific area.
- **Environment**: The surrounding conditions, including biotic (living) and abiotic (non-living) factors, that affect an organism.

3. **Identifying the Correct Definition**:
- Among the options provided, the correct definition of autecology is the study of the relationship of an individual organism to its environment.

4. **Distinguishing from Other Ecological Concepts**:
- It is important to differentiate autecology from other ecological studies:
- **Synecology**: This is the study of groups of organisms (communities) and their interactions with the environment.
- **Biome**: This refers to larger ecological areas on the planet, characterized by specific climates and ecosystems.

5. **Conclusion**:
- Therefore, autecology specifically pertains to the relationship of an individual organism to its environment, making it distinct from studies of populations, communities, or biomes.

### Final Answer:
Autecology is the study of the relationship of an individual organism to its environment.

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