Who was the first scientist to doubt theory fo spontaneous creation?

Options

A. Paster
B. Spallanzani
C. Redi
D. Darwin

Answer

**Step-by-Step Solution:**

1. **Understanding Spontaneous Generation**: The theory of spontaneous generation, which was popularized in 1668, proposed that life could arise from non-living matter. This theory suggested that organisms could spontaneously emerge from decaying substances.

2. **Identifying the First Scientist to Doubt the Theory**: The question asks for the first scientist who doubted this theory. The first scientist to challenge the idea of spontaneous generation was Francesco Redi.

3. **Francesco Redi's Experiment**: Redi conducted an experiment to test the validity of spontaneous generation. He used two types of flasks: one open to the air and the other sealed. He placed meat in both flasks.

4. **Observations from the Experiment**: After some time, he observed that maggots appeared only in the open flask, while the sealed flask remained free of maggots. This led him to conclude that the maggots did not arise spontaneously from the meat.

5. **Conclusion**: Redi's experiment demonstrated that the maggots came from eggs laid by flies, not from the meat itself. This was a significant step in disproving the theory of spontaneous generation.

6. **Final Answer**: Therefore, the first scientist to doubt the theory of spontaneous generation was Francesco Redi.

---