Who believed in the individuality of cells?

Options

A. Leeuwenhoek
B. Lamarck
C. Dutrochet
D. Malpighi

Answer

To answer the question "Who believed in the individuality of cells?", we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Context**: The question is asking about a scientist who believed in the individuality of cells. This concept relates to the cell theory and the understanding of cells as the basic units of life.

2. **Review Historical Contributions**:
- In 1809, Lamarck proposed that all living beings are composed of cells, but he did not specifically emphasize the individuality of cells.
- Levenhoek is known for his work in microscopy and for being one of the first to observe single-celled organisms, but he did not focus on the individuality of cells.
- Malpighi contributed to the study of anatomy and histology but did not specifically advocate for the individuality of cells.
- Dutrochet, on the other hand, is known for his work in cell theory and is credited with the idea that living organisms are composed of individual cells.

3. **Conclude the Answer**: Based on the historical contributions, it is clear that the scientist who believed in the individuality of cells is **Dutrochet**.

4. **Select the Correct Option**: Among the provided options, the correct answer is **option C: Dutrochet**.

### Final Answer:
The scientist who believed in the individuality of cells is **Dutrochet** (option C).

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