What are the animal species of a region called?

Options

A. Flora
B. Fauna
C. Habitat
D. Ecosystem

Explanation

To answer the question "What are the animal species of a region called?", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Ecosystem**:
- An ecosystem consists of both plants and animals, along with abiotic components like air, water, and soil.

2. **Identifying Terms**:
- In biological terms, different groups of organisms have specific names. For plants, the term used is "flora".

3. **Defining Fauna**:
- The term used to refer to the animal species in a particular region is "fauna".

4. **Evaluating Options**:
- If given options, we would look for the term that corresponds to animals.
- "Flora" refers to plants, while "fauna" refers to animals.

5. **Conclusion**:
- Therefore, the correct term for the animal species of a region is "fauna".

### Final Answer:
The animal species of a region are called "fauna".

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