Assertion: Genetic diversity within species increases with the increase in habitat variations.
Reason : It is essential for adaptation to varied environments.

Options

A. If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
B. If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
C. If Assertion is true but the Reason is false.
D. If both Assertion and Reason are false.

Answer

To solve the question regarding the assertion and reason provided, we can break it down into a step-by-step analysis:

### Step 1: Understand the Assertion
The assertion states that "Genetic diversity within species increases with the increase in habitat variations."
- **Explanation**: Genetic diversity refers to the variety of genes within a species. When habitats vary, it creates different environmental pressures and opportunities, leading to a greater range of genetic traits being favored and maintained within the population.

### Step 2: Understand the Reason
The reason states that "It is essential for adaptation to varied environments."
- **Explanation**: Genetic diversity is crucial for the survival of species as it allows populations to adapt to changing environments. The more diverse the genetic makeup, the better the chances that some individuals will possess traits that allow them to survive and reproduce under new environmental conditions.

### Step 3: Analyze the Relationship
Now, we need to determine if the reason correctly explains the assertion.
- **Analysis**: The assertion and reason are closely related. Increased habitat variation leads to increased genetic diversity, which in turn is essential for adaptation to those varied environments. Thus, the reason does indeed explain the assertion.

### Step 4: Evaluate the Options
Now, we can evaluate the options given:
1. Both assertion and reason are true, and reason is the correct explanation of the assertion.
2. Both assertion and reason are true, and reason is not the correct explanation of the assertion.
3. Assertion is true, but reason is false.
4. Both assertion and reason are false.

Given our analysis:
- Both the assertion and the reason are true.
- The reason correctly explains the assertion.

### Conclusion
The correct answer is option 1: "Both assertion and reason are true, and reason is the correct explanation of the assertion."

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