Plasticity in plant growth means that

Options

A. plant roots are extensible
B. plant development is dependent on the environment
C. stems can extend
D. all of the above

Answer

**Step-by-Step Solution:**

1. **Understanding Plasticity in Plant Growth:**
- Plasticity in plant growth refers to the ability of plants to adapt their growth and development in response to environmental conditions. This means that plants can modify their structure and function based on the stimuli they receive from their surroundings.

2. **Evaluating the Options:**
- **Option 1: Plant roots are extensible.**
- This statement is not a comprehensive definition of plasticity. While roots can grow and adapt, this option does not capture the full meaning of plasticity in plant growth.

- **Option 2: Plant development is dependent on the environment.**
- This statement accurately reflects the concept of plasticity. It emphasizes that the growth and development of plants can change based on environmental factors such as light, water availability, soil conditions, and temperature. This adaptability is a key characteristic of plasticity.

- **Option 3: Stems can extend.**
- Similar to option 1, while stems can grow, this statement alone does not encompass the broader concept of plasticity in plant growth.

- **Option 4: All of the above.**
- Since options 1 and 3 are not correct representations of plasticity, this option is also incorrect.

3. **Conclusion:**
- Based on the evaluation of the options, the correct answer is **Option 2: Plant development is dependent on the environment.** This option best describes the meaning of plasticity in plant growth.

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