Which of the following is not a fundamental reason for greater biodiversity in tropics as compared to that of temperate regions ?

Options

A. Tropical latitudes have remained relatively undisturbed for millions of years
B. Temperate environments , unlike tropical ones, are less seasonal, relatively more constant and predictable
C. Temperate regions were subject to frequent glaciations in the past
D. There is more solar energy available in the tropics which contributes to higher productivity

Answer

To solve the question regarding the fundamental reasons for greater biodiversity in the tropics compared to temperate regions, we will analyze each of the provided options step by step.

### Step 1: Understand the Question
The question asks us to identify which of the following statements is NOT a fundamental reason for the higher biodiversity found in tropical regions compared to temperate regions.

### Step 2: Analyze Each Option
1. **Tropical latitudes have remained relatively undisturbed for millions of years.**
- This statement is true. The tropical regions have stable climates and have not undergone significant geological changes, allowing for high speciation and biodiversity.

2. **Temperate environments, unlike tropical ones, are less seasonal and relatively more constant and predictable.**
- This statement is false. Tropical environments are indeed less seasonal and more constant compared to temperate regions, which experience more seasonal changes. Therefore, this statement does not correctly describe a reason for biodiversity differences.

3. **Temperate regions were subjected to frequent glaciations in the past.**
- This statement is true. The temperate regions have experienced glaciation events, which have disrupted habitats and led to lower biodiversity compared to the stable tropical regions.

4. **There is more solar energy available in the tropics, which contributes to higher productivity.**
- This statement is true. The tropics receive more solar energy, which supports higher productivity and, consequently, greater biodiversity.

### Step 3: Identify the Incorrect Statement
From the analysis, the second statement is the only one that is incorrect. It misrepresents the nature of temperate environments compared to tropical ones.

### Conclusion
The answer to the question is that the statement "Temperate environments unlike tropical ones are less seasonal relatively more constant and predictable" is NOT a fundamental reason for greater biodiversity in the tropics.

### Final Answer
**Option 2** is the correct answer.

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