Which of the following term implies the maintenance of relatively constant physical and chemical conditions within organisms?

Options

A. Homeostasis
B. Adaptation
C. Isometry
D. Acclimation

Answer

To solve the question regarding the term that implies the maintenance of relatively constant physical and chemical conditions within organisms, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Question**: The question asks for a term that describes the ability of organisms to maintain stable internal conditions despite external changes.

2. **Review the Options**: The options provided are:
- A) Homeostasis
- B) Adaptation
- C) Isometry
- D) Acclimatization

3. **Analyze Each Option**:
- **A) Homeostasis**: This term refers to the process by which living organisms regulate their internal environment to maintain a stable, constant condition. This includes the regulation of temperature, pH, hydration, and other vital parameters.
- **B) Adaptation**: This refers to the evolutionary process where organisms become better suited to their environment over time. It does not specifically refer to the maintenance of internal conditions.
- **C) Isometry**: This term describes a condition where growth occurs at the same rate for all parts of an organism. It does not relate to the maintenance of internal conditions.
- **D) Acclimatization**: This is the process by which an organism adjusts to changes in its environment over a short period. While it involves adjustments, it does not imply the constant maintenance of internal conditions.

4. **Identify the Correct Answer**: Based on the analysis, the term that best fits the description of maintaining relatively constant physical and chemical conditions within organisms is **Homeostasis**.

5. **Conclusion**: Therefore, the correct answer is **A) Homeostasis**.