Fill in the following blanks with suitable words:
Yeast is a ………… celled organism.

Answer

**Step-by-Step Text Solution:**

1. **Identify the Organism:** The question refers to "yeast." Yeast is a type of fungus that is commonly used in baking and fermentation.

2. **Classify Yeast:** Yeast belongs to the kingdom Fungi. Organisms in this kingdom are known as heterotrophs, meaning they obtain their food from other sources.

3. **Determine Cell Structure:** Yeast is characterized as a unicellular organism, meaning it consists of a single cell. This distinguishes it from multicellular organisms, which are made up of many cells.

4. **Fill in the Blank:** Based on the classification and characteristics of yeast, we can fill in the blank: "Yeast is a **unicellular** organism."

**Final Answer:** Yeast is a **unicellular** organism.

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