A: Shivering is an adaption for low temperature .
R: Shivering warms up the body.

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion
B. It both Assertion & Reason are true but the reason is not the correct explanation of the assertion
C. If Assertion is true statement but Reason is false
D. If both Assertion and Reason are false statements

Answer

To solve the assertion and reason question, we will analyze both statements step by step.

### Step 1: Understand the Assertion
The assertion states, "Shivering is an adaptation for low temperature."
- This means that shivering is a physiological response that helps organisms cope with cold environments.

### Step 2: Analyze the Biological Mechanism
In humans, maintaining a core body temperature of around 37 degrees Celsius is crucial for normal physiological functions. When exposed to low temperatures:
- The body senses the drop in temperature and initiates a response to maintain homeostasis (the stable internal environment).

### Step 3: Understand the Reason
The reason states, "Shivering warms up the body."
- Shivering involves rapid, involuntary muscle contractions. This process generates heat due to increased metabolic activity in the muscles.

### Step 4: Connect the Assertion and Reason
- The assertion that shivering is an adaptation for low temperature is supported by the reason that shivering generates heat, thus helping to warm the body and restore homeostasis.

### Step 5: Conclusion
Both the assertion and reason are correct, and the reason provides a valid explanation for the assertion. Therefore, the correct answer is that both the assertion and reason are true, and the reason is the correct explanation of the assertion.

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