Which of the following cannot be considered as function of sexual reproduction?

Options

A. Introduces variation
B. Avoids ageing
C. Replaces organisms lost due to predation
D. Helps in continuation of species

Answer

To determine which of the following cannot be considered a function of sexual reproduction, we will analyze each option based on the characteristics and functions of sexual reproduction.

### Step-by-Step Solution:

1. **Understanding Sexual Reproduction**:
- Sexual reproduction involves two parents contributing genetic material through the formation of gametes (male and female). When these gametes fuse during fertilization, they form a zygote, leading to the development of a new organism.

2. **Identifying Functions of Sexual Reproduction**:
- The primary functions of sexual reproduction include:
- **Introduction of Variation**: Sexual reproduction creates genetic diversity among offspring due to the combination of genes from both parents.
- **Replacement of Lost Organisms**: Reproduction allows for the continuation of a species, especially when individuals are lost due to predation or other factors.
- **Continuation of Species**: Sexual reproduction ensures that species can survive and thrive over generations.

3. **Evaluating Each Option**:
- **Option 1: Introduces Variation**: This is a function of sexual reproduction as it leads to genetic diversity.
- **Option 2: Avoids Ageing**: This statement is incorrect. Sexual reproduction does not have a direct impact on the ageing process of organisms. Therefore, this cannot be considered a function of sexual reproduction.
- **Option 3: Replaces Organisms Lost Due to Predation**: This is a function of sexual reproduction, as it allows for the production of new individuals to replace those lost.
- **Option 4: Helps in Continuation of Species**: This is also a function of sexual reproduction, as it ensures the survival of species through reproduction.

4. **Conclusion**:
- The option that cannot be considered a function of sexual reproduction is **Option 2: Avoids Ageing**.

### Final Answer:
**Option 2: Avoids Ageing**