Define organic evolution in three words.

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Organic Evolution**: Organic evolution refers to the process through which species undergo genetic changes over time. This process is fundamental to the development of new species and the adaptation of organisms to their environments.

2. **Identifying Key Aspects**: To define organic evolution in three words, we need to focus on its core components. The essential elements of organic evolution include:
- Genetic
- Change
- Time
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