When organisms change their location to escape from harsh environment, it is called as

Options

A. Hibernation
B. Vernalization
C. Migration
D. Aestivation

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the term used when organisms change their location to escape from harsh environmental conditions.

2. **Identifying the Options**: The options provided are:
- Hibernation
- Vernalization
- Migration
- Estivation

3. **Analyzing Each Option**:
- **Hibernation**: This is a state of inactivity and metabolic depression in animals during winter to conserve energy and survive harsh weather. It does not involve changing location.
- **Vernalization**: This is a process used in plants where they are exposed to low temperatures to induce flowering. It is not related to organisms changing location.
- **Migration**: This refers to the seasonal movement of animals from one region to another, often in search of better living conditions, food, or breeding grounds. This involves changing location.
- **Estivation**: This is a state of dormancy or inactivity that some organisms enter during dry or hot conditions to conserve water. It does not involve changing location.

4. **Conclusion**: Based on the analysis, the correct term for when organisms change their location to escape from harsh environments is **Migration**.

5. **Final Answer**: The answer is **Migration**.

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