Which of the following statements about flora and fauna is true?

Options

A. The various plants species found in an area constitute the flora while the various animal species found in an area constitute the fauna
B. The various plant species found in an area constitute the fauna while the various animal species found in an area constitute the flora
C. The plants and animals found in a region constitute the region's flora
D. The plants and animals found in a region constitute the region's fauna

Answer

To determine which statement about flora and fauna is true, we can analyze each option step by step:

### Step 1: Understand the Definitions
- **Flora** refers to the various plant species found in a particular area.
- **Fauna** refers to the various animal species found in that same area.

### Step 2: Evaluate Each Statement
1. **First Statement**: "The various plant species found in an area constitute the flora while the various animal species found in an area constitute the fauna."
- This statement is true because it correctly defines flora and fauna.

2. **Second Statement**: "The various plant species found in an area constitute the fauna while the various animal species found in an area constitute the flora."
- This statement is false because it incorrectly swaps the definitions of flora and fauna.

3. **Third Statement**: "The plants and animals found in a region constitute the region's flora."
- This statement is false because it incorrectly states that both plants and animals are included in flora; flora only includes plants.

4. **Fourth Statement**: "The plants and animals found in a region constitute the region's fauna."
- This statement is false because it incorrectly states that both plants and animals are included in fauna; fauna only includes animals.

### Step 3: Conclusion
After evaluating all the statements, we conclude that the **first statement** is the only true statement regarding flora and fauna.

### Final Answer
The correct answer is the first statement.

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