Hibernation is

Options

A. winter sleep under ground
B. summer sleep under ground
C. spring sleep under the water
D. winter sleep under the water

Answer

**Step-by-Step Solution:**

1. **Definition of Hibernation**: Hibernation is a state of inactivity and metabolic depression in endotherms. It is commonly referred to as "winter sleep."

2. **Purpose of Hibernation**: The primary purpose of hibernation is to conserve energy during periods when food is scarce, particularly in winter when temperatures are low and resources are limited.

3. **Dormant State**: During hibernation, the organism enters a dormant state, characterized by significantly reduced metabolic activity. This means that the animal's bodily functions slow down, allowing it to survive on stored energy.

4. **Conditions for Hibernation**: Hibernation typically occurs during the winter months when environmental conditions are harsh. It is essential for the survival of many species that cannot find food during this time.

5. **Common Misconceptions**: It is important to note that hibernation is not the same as sleeping. While hibernating, animals are in a deep state of rest and are not active. Additionally, hibernation does not occur in summer or spring, and it is not typically under water but rather underground.

6. **Conclusion**: Therefore, hibernation can be defined as a period of winter sleep where organisms remain inactive and conserve energy to survive adverse weather conditions.

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