According to Darwin, which of the following variations enable the individual to reproduce and leave more progeny?

Options

A. Heritable
B. Non-heritable
C. The organism that are more adoptable to use the resource
D. Both (A) and (C )

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which variations, according to Darwin, enable individuals to reproduce and leave more progeny. This relates to the concept of natural selection and the role of variations in evolution.

2. **Identifying the Options**: The options provided are:
- A) Heritable variations
- B) Non-heritable variations
- C) Organisms that are more adaptable to use resources
- D) Both A and C

3. **Analyzing Option A (Heritable Variations)**:
- Heritable variations are traits that can be passed from parents to offspring. According to Darwin, these variations are crucial for evolution because they can lead to adaptations that enhance survival and reproductive success. Therefore, heritable variations enable individuals to reproduce and leave more progeny.

4. **Analyzing Option B (Non-heritable Variations)**:
- Non-heritable variations are traits that cannot be passed on to the next generation. Since these variations do not contribute to genetic inheritance, they do not enable individuals to reproduce and leave more progeny in the context of Darwin's theory.

5. **Analyzing Option C (Adaptability to Resources)**:
- Organisms that are more adaptable to their environment can utilize available resources more effectively. This adaptability can lead to increased survival and reproductive success, which aligns with Darwin's ideas on natural selection. Therefore, this option is also correct.

6. **Conclusion**: Since both heritable variations (Option A) and adaptability to resources (Option C) contribute to an individual's ability to reproduce and leave more progeny, the correct answer is:
- **D) Both A and C**.

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