Identify the respective phylum to which the following organisms belong. Give their characteristics.
Fine cotton thread-like tuft on the surface of a piece of bread kept open.

Explanation

**Step-by-Step Solution:**

1. **Identify the Organism**: The fine cotton thread-like tuft observed on the surface of a piece of bread is identified as mold, which is a type of fungus.

2. **Determine the Phylum**: The mold found on bread belongs to the phylum **Zygomycota** (or it can also be classified under **Ascomycota** depending on the specific type of mold).

3. **Characteristics of Fungi**:
- **Eukaryotic Cells**: Fungi are composed of eukaryotic cells, which means their cells have a defined nucleus and organelles.
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