Give the scientific name of the source organism from which the first antibiotic was produced.

Explanation

**Step-by-Step Solution:**

1. **Identify the First Antibiotic**: The first antibiotic discovered was penicillin, which was found in 1928 by Alexander Fleming.

2. **Determine the Source Organism**: Penicillin is derived from a specific organism. In this case, it comes from a type of fungus.

3. **Scientific Classification**: The scientific name of the organism that produces penicillin is crucial. This organism belongs to the genus Penicillium.

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