Which of the following is a characteristic feature of zoospores?

Options

A. They are motile
B. They are macroscopic
C. They are non-motile
D. They are sexual spores

Answer

To solve the question regarding the characteristic feature of zoospores, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Zoospores**:
- Zoospores are a type of spore that is capable of movement. They are produced by certain lower organisms, such as algae and fungi, and are involved in asexual reproduction.

2. **Analyzing the Options**:
- **Option A: They are motile**: This option suggests that zoospores can move, which is true. Zoospores have flagella that allow them to swim in water.
- **Option B: They are macroscopic**: This option implies that zoospores can be seen with the naked eye. However, zoospores are generally microscopic and cannot be seen without a microscope.
- **Option C: They are non-motile**: This option contradicts the definition of zoospores, as they are indeed motile.
- **Option D: They are sexual spores**: This option is incorrect because zoospores are asexual spores, not sexual spores.

3. **Conclusion**:
- Based on the analysis, the correct characteristic feature of zoospores is that they are motile (Option A).

### Final Answer:
The correct answer is **Option A: They are motile**.