Different life forms, among organisms in relation to environment were given by :

Options

A. Reiter
B. Odum
C. Raunkiers
D. Warming

Answer

To answer the question regarding which scientist proposed the theory of different life forms among organisms in relation to the environment, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the scientist who described the relationship between different life forms and their environment. This involves looking at how organisms interact with each other and adapt to their surroundings.

2. **Identifying Key Terms**: The key terms here are "different life forms," "organisms," and "environment." This suggests a focus on ecological relationships and evolution.

3. **Recalling Relevant Theories**: The video mentions that the theory was given by Ronquiers in 1895. This indicates that we should focus on his contributions to ecology and evolution.

4. **Evaluating Other Scientists**: The video also discusses other scientists:
- **Rater**: Known for Rater's syndrome, which is unrelated to ecology.
- **Odum**: Focused on ecological behavior but not specifically on the theory of life forms in relation to the environment.
- **Warming**: Contributed to ecological research but did not propose the specific theory in question.

5. **Conclusion**: Based on the information provided, the correct answer is that the theory regarding different life forms among organisms in relation to the environment was given by Ronquiers.

### Final Answer:
The scientist who proposed the theory of different life forms among organisms in relation to the environment is Ronquiers.

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