State whether the following statements are true or false: Ageing of humans and animals is a reversible change.

Answer

To determine whether the statement "Aging of humans and animals is a reversible change" is true or false, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- First, we need to understand what "reversible change" means. A reversible change is a change that can be undone or reversed, allowing the original state to be restored.

2. **Define Aging**:
- Aging refers to the process of becoming older. It involves physical and biological changes that occur over time in humans and animals.

3. **Evaluate Aging as a Change**:
- Aging is a natural process that leads to a permanent change in the state of an organism. Once an organism ages, it cannot return to its younger state.

4. **Determine Reversibility**:
- Since aging cannot be reversed (once an organism ages, it cannot become young again), it is classified as an irreversible change.

5. **Conclusion**:
- Therefore, the statement "Aging of humans and animals is a reversible change" is **false**. Aging is an irreversible change.

### Final Answer:
The statement is **false**.

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