select the odd one with respect to the source of antibiotics :

Options

A. Bacteria
B. Lichen
C. fungi
D. Seeded plants

Answer

To solve the question of selecting the odd one out with respect to the source of antibiotics, we can analyze each option provided:

1. **Bacteria**: Bacteria, specifically certain types like Actinomycetes and Streptomyces, are well-known sources of antibiotics. For example, Streptomycin is derived from Streptomyces griseus.

2. **Lichen**: Lichens, which are symbiotic associations between algae and fungi, can also produce antibiotic compounds. Some lichen species have been shown to have antibacterial properties.

3. **Fungi**: Fungi are another significant source of antibiotics. A prime example is Penicillin, which is derived from the Penicillium fungus.

4. **Seeded Plants**: Seeded plants, including gymnosperms and angiosperms, are not typically recognized as sources of antibiotics. While they may have some medicinal properties, they do not produce antibiotics in the same way that bacteria, fungi, and lichens do.

Based on this analysis, the odd one out is **Seeded Plants** (option 4), as they do not serve as a source of antibiotics like the other three options.

### Step-by-Step Solution:
1. Identify the sources of antibiotics from the options: Bacteria, Lichen, Fungi, Seeded Plants.
2. Analyze each option:
- Bacteria: Known source of antibiotics (e.g., Streptomycin).
- Lichen: Some species can produce antibiotics.
- Fungi: Known source of antibiotics (e.g., Penicillin).
- Seeded Plants: Generally not a source of antibiotics.
3. Determine which option does not fit with the others.
4. Conclude that **Seeded Plants** is the odd one out.