___________are saprophytic protists, whose body moves along decaying twigs and leaves engulfing organic material.

Options

A. Euglenoids
B. Dinoflagellates
C. Chrysophytes
D. Slime moulds

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a type of saprophytic protist that moves along decaying organic matter like twigs and leaves while engulfing it.

2. **Identifying the Options**: The options provided are:
- Euglenoids
- Dinoflagellates
- Chrysophytes
- Slime molds

3. **Analyzing Each Option**:
- **Euglenoids**: These are flagellated, single-celled organisms that are primarily photosynthetic and do not fit the description of saprophytic behavior.
- **Dinoflagellates**: These are also single-celled organisms that have two flagella and are mostly found in marine environments. They are not saprophytic.
- **Chrysophytes**: Known as golden algae, they are primarily photosynthetic and do not exhibit saprophytic behavior.
- **Slime molds**: These are indeed saprophytic protists. They have a multi-nucleated body that moves along decaying organic matter, such as twigs and leaves, and they engulf organic material.

4. **Conclusion**: Based on the analysis, the correct answer is **slime molds**.

**Final Answer**: Slime molds are saprophytic protists whose body moves along decaying twigs and leaves engulfing organic material.

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