Bees do not visit pure red flowers because red colour appears

Options

A. Black
B. Changes nervus coordination
C. Invisible
D. Both A and B.

Answer

### Step-by-Step Solution

1. **Understanding Bee Vision**: Bees have a different visual perception compared to humans. They can see ultraviolet (UV) light, which is invisible to the human eye. However, they cannot perceive red light.

2. **Color Perception in Bees**: In the visible light spectrum, red appears as a color that bees cannot detect. For bees, pure red flowers appear black because they lack the ability to see that part of the spectrum.

3. **Nectar Guides**: Many flowers have patterns known as nectar guides that reflect UV light. These guides help bees locate flowers that contain nectar, which they are attracted to for feeding.

4. **Attraction to Flowers**: Since bees are attracted to flowers that reflect UV light and appear colorful to them, they tend to avoid pure red flowers, as these do not provide the visual cues that attract them.

5. **Conclusion**: Therefore, the reason bees do not visit pure red flowers is that these flowers appear black to them, making them less likely to be attracted to them.

### Final Answer
Bees do not visit pure red flowers because red color appears black to them.

---