Deserts, grasslands, forests and tundra are the examples of

Options

A. Biomes
B. Biogeographical regions
C. Ecosystems
D. Biospheres

Answer

**Step-by-Step Solution:**

1. **Understanding the Terms**: Start by defining the terms provided in the options: biomes, biogeographical regions, ecosystems, and biospheres. This will help in distinguishing between them.

2. **Defining Biomes**: A biome is a large regional unit characterized by specific climatic conditions, major vegetation types, and associated animal species. Examples include deserts, grasslands, forests, and tundra.

3. **Identifying the Examples**: The question lists deserts, grasslands, forests, and tundra. These are all distinct types of biomes, each with unique climate and vegetation.

4. **Eliminating Other Options**:
- Ecosystems: While they include both biotic and abiotic components, they are smaller than biomes and do not specifically refer to the large regional units mentioned in the question.
- Biospheres: This term refers to the global sum of all ecosystems, which is a broader concept than biomes.
- Biogeographical regions: These are more related to physical geography rather than biological characteristics.

5. **Conclusion**: Based on the definitions and examples, the correct answer to the question is that deserts, grasslands, forests, and tundra are examples of biomes.

**Final Answer**: Deserts, grasslands, forests, and tundra are examples of **biomes**.

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