Chances of inheritable and evolutionary changes are more in such species which reproduce by :

Options

A. Parthenogenesis
B. Fission
C. Sexual reproduction
D. Asexual reproduction

Answer

### Step-by-Step Solution:

1. **Understanding Reproductive Methods**:
- There are different methods of reproduction: parthenogenesis, fission, asexual reproduction, and sexual reproduction. Each method has distinct characteristics regarding genetic variation.

2. **Defining Parthenogenesis**:
- Parthenogenesis is a form of asexual reproduction where an egg develops into an organism without fertilization. The division that occurs is mitotic, leading to offspring that are genetically identical to the parent.

3. **Explaining Fission**:
- Fission is another asexual reproduction method where a single organism divides into two or more parts, each of which can grow into a new organism. This process also involves mitotic division and results in genetically identical offspring.

4. **Asexual Reproduction**:
- Asexual reproduction includes methods like budding and vegetative propagation, where offspring are produced from a single parent without the involvement of gametes. The offspring are clones of the parent.

5. **Understanding Sexual Reproduction**:
- Sexual reproduction involves two parents, where male and female gametes combine through fertilization to form a zygote. This process includes meiotic division, which creates gametes and introduces genetic variation through recombination.

6. **Importance of Meiotic Division**:
- Meiotic division is crucial because it allows for the mixing of genetic material from both parents, leading to new combinations of traits. This genetic diversity is essential for evolution.

7. **Conclusion**:
- The chances of inheritable and evolutionary changes are significantly higher in species that reproduce sexually due to the genetic variation introduced through recombination during meiotic division.

### Final Answer:
The chances of inheritable and evolutionary changes are more in species that reproduce by **sexual reproduction**.

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