In protists the locomotory organelles are

Options

A. Flagella
B. Flagella, cilia and pseudopodia
C. Flagella and cilia
D. Flagella, cilia pseudopodia and wrigglers.

Answer

### Step-by-Step Solution:

1. **Understanding the Kingdom Protista**:
- The kingdom Protista consists of a diverse group of unicellular eukaryotic organisms. They are often classified based on their modes of locomotion.

2. **Identifying Locomotory Organelles**:
- In protists, locomotion can occur through different structures:
- **Flagella**: Long, whip-like structures that some protists use for movement.
- **Cilia**: Short, hair-like structures that cover the surface of some protists and help them move.
- **Pseudopodia**: Temporary projections of the cell that help in movement and feeding.

3. **Examples of Locomotory Organelles in Protists**:
- **Flagellates**: Organisms like dinoflagellates and euglenoids use flagella for movement. Euglena, for example, has one long and one short flagellum.
- **Ciliates**: Organisms like Paramecium move using cilia.
- **Amoeboids**: Organisms like Amoeba utilize pseudopodia for locomotion.

4. **Conclusion**:
- The locomotory organelles in protists include flagella, cilia, and pseudopodia. Therefore, the correct answer to the question is that protists use these three types of organelles for locomotion.

### Final Answer:
In protists, the locomotory organelles are flagella, cilia, and pseudopodia.

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