Coiling of graden pea tendrils around any support is an example of

Options

A. Thermotaxis
B. Thigmotaxis
C. Thigmonasty
D. Thigmotropism

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the coiling of garden pea tendrils around any support. We need to identify the type of response this behavior represents.

2. **Identifying the Options**: The options provided are:
- Thermotaxis
- Thigmotaxis
- Thigmonastic
- Thigmotropism

3. **Analyzing Each Option**:
- **Thermotaxis**: This refers to the movement of an organism in response to temperature gradients. This is not applicable to the coiling of tendrils.
- **Thigmotaxis**: This is the orientation or movement of an organism in response to touch. While it involves touch, it does not specifically describe the growth response of plants.
- **Thigmonastic**: This term refers to a non-directional response to touch or vibration. It does not apply to the directional growth of tendrils.
- **Thigmotropism**: This is the directional growth response of a plant to touch or physical contact, which is exactly what happens when pea tendrils coil around a support.

4. **Conclusion**: Since the coiling of garden pea tendrils is a directional growth response to the touch of a support, the correct answer is **Thigmotropism**.

**Final Answer**: The coiling of garden pea tendrils around any support is an example of **Thigmotropism**.

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