Favourable morphological and physiological response to a change in environment is called

Options

A. Preadaptation
B. Ecotyping
C. Formation of ecophenes
D. Acclimitisation.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for the term that describes the favorable morphological and physiological responses of an organism to changes in its environment.

2. **Identifying Key Terms**:
- Morphological responses refer to changes in the structure or form of an organism.
- Physiological responses refer to changes in the functions or processes of an organism.
- The term we are looking for should encompass both types of responses to environmental changes.

3. **Analyzing the Options**:
- **Pre-adaptation**: This refers to adaptations that serve a different purpose than the one for which they evolved. It does not specifically relate to immediate responses to environmental changes.
- **Ecotyping**: This term describes a population that has adapted to local environmental conditions. While it involves adaptation, it does not specifically refer to individual responses.
- **Ecophenes**: This term refers to the variety of phenotypes that can arise from a single genotype in a specific habitat. It focuses on phenotypic variation rather than physiological or morphological responses to environmental changes.
- **Acclimatization**: This is the process by which an individual organism adjusts to changes in its environment, such as temperature, humidity, or altitude, allowing it to maintain performance across a range of conditions.

4. **Choosing the Correct Answer**: Based on the definitions and explanations of the options, the correct answer is **acclimatization**. This term accurately describes the favorable morphological and physiological responses to environmental changes.

5. **Conclusion**: Therefore, the answer to the question is **acclimatization**.

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