Seeds of Cinchona are dispersed by

Options

A. Water because they are very small and light
B. Wind because they are winged
C. Water because they possess aerenchyma
D. Animals as they have barbs

Answer

**Step-by-Step Solution:**

1. **Identify the Question**: The question asks how the seeds of Cinchona are dispersed.

2. **Analyze the Options**: The options provided are:
- A) Water because they are very small and light
- B) Wind because they are winged
- C) Water because they possess aerenchyma
- D) Animals as they have barbs

3. **Consider the Characteristics of Cinchona Seeds**:
- Cinchona seeds are known to be very small and lightweight.
- They have a winged structure which helps them to be carried by the wind.

4. **Evaluate Each Option**:
- **Option A**: While the seeds are small and light, they are not dispersed by water. This option is incorrect.
- **Option B**: The seeds are winged, which allows them to be carried by the wind. This option is correct.
- **Option C**: The presence of aerenchyma does not relate to seed dispersal by water. This option is incorrect.
- **Option D**: The seeds do not have barbs for animal dispersal. This option is incorrect.

5. **Conclusion**: Based on the analysis, the correct answer is that the seeds of Cinchona are dispersed by the wind because they are winged.

**Final Answer**: Seeds of Cinchona are dispersed by wind because they are winged.

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