List out the various evolutionary agents as envisaged by the modern theory of evolution.

Explanation

### Step-by-Step Solution

1. **Understanding Evolutionary Agents**:
- Evolutionary agents are forces that can alter the genetic structure of a population. They play a crucial role in the process of evolution by affecting how traits are passed on and how populations change over time.

2. **Identifying the Various Evolutionary Agents**:
- **Recombination**: This is the process by which genetic material is rearranged during reproduction, leading to new combinations of genes in the offspring. It contributes to genetic diversity within a population.

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