The basic living unit of an organism is an organ. (T / F)

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question states, "The basic living unit of an organism is an organ." We need to determine if this statement is true or false.

2. **Defining Key Terms**:
- **Organ**: An organ is a group of tissues that work together to perform a specific function in an organism (e.g., heart, lungs).
- **Cell**: A cell is the smallest unit of life that can function independently and perform all the necessary functions of life.

3. **Identifying the Basic Living Unit**:
- The basic living unit of an organism is not an organ. Instead, it is a cell. Cells are the fundamental building blocks of all living organisms.

4. **Types of Organisms**:
- **Unicellular Organisms**: These are organisms made up of a single cell (e.g., bacteria, amoeba).
- **Multicellular Organisms**: These are organisms made up of multiple cells (e.g., humans, plants).

5. **Conclusion**: Since the basic living unit of an organism is a cell, not an organ, the statement "The basic living unit of an organism is an organ" is **False**.

**Final Answer**: False

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