who disapproved abiogenesis for the first time?

Options

A. Lamarck
B. F. Redi
C. Pasteur
D. Darwin

Answer

To answer the question "Who disapproved abiogenesis for the first time?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Concept of Abiogenesis**:
- Abiogenesis refers to the idea that life can arise spontaneously from non-living matter. This concept was widely accepted until scientific experiments began to challenge it.

2. **Identify Key Figures in the Disproof of Abiogenesis**:
- Several scientists conducted experiments that led to the disproof of abiogenesis, including Francis O'Ready, Louis Pasteur, and Lazzaro Spallanzani.

3. **Examine the Contributions of Each Scientist**:
- **Francis O'Ready (1668)**: He conducted an experiment using fish meat and concluded that life does not originate spontaneously but from pre-existing life.
- **Louis Pasteur (1862)**: He performed the famous swan-necked flask experiment, which demonstrated that microorganisms in the air were responsible for contamination, thus disproving the idea of spontaneous generation.
- **Lazzaro Spallanzani**: He also conducted experiments that supported the idea that life comes from existing life.

4. **Determine Who Disproved Abiogenesis First**:
- Among the scientists mentioned, Francis O'Ready was the first to conduct an experiment that disapproved abiogenesis in 1668, making him the earliest figure to challenge the theory.

5. **Conclude the Answer**:
- Therefore, the answer to the question is **Francis O'Ready**.

### Final Answer:
Francis O'Ready disapproved abiogenesis for the first time.

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