Protistans are connecting link between

Options

A. Plants and animals
B. Fungi and plants
C. Monerans and kingdoms of multicellular organisms
D. Fungi and animals.

Answer

### Step-by-Step Solution:

1. **Understanding Protists**: Protists are unicellular eukaryotic organisms. This means they have a complex cell structure with a nucleus and membrane-bound organelles, unlike prokaryotes (like bacteria) which lack these features.

2. **Identifying the Groups**: The question asks what protists serve as a connecting link between. The options provided include:
- Plants and animals
- Fungi and plants
- Monerans and kingdoms of multicellular organisms
- Fungi and animals

3. **Analyzing the Options**:
- **Plants and Animals**: Both are multicellular organisms, while protists are unicellular. Thus, this option does not represent a connection.
- **Fungi and Plants**: Both fungi and plants are multicellular organisms. This option also does not represent a connection.
- **Monerans and Kingdoms of Multicellular Organisms**: Monerans (bacteria) are unicellular and prokaryotic, while protists are unicellular and eukaryotic. This option indicates a connection between unicellular organisms and multicellular organisms.
- **Fungi and Animals**: Both are multicellular organisms, so this option does not represent a connection.

4. **Conclusion**: The correct answer is that protists are a connecting link between monerans (unicellular prokaryotes) and kingdoms of multicellular organisms (like plants and animals). This is because protists share the characteristic of being unicellular with monerans, while also being eukaryotic like plants and animals.

### Final Answer:
Protists are a connecting link between monerans and kingdoms of multicellular organisms (including plants and animals).

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