Evolutionary biology is the study of

Options

A. Civilisations
B. History of life forms on earth
C. Hardy-Weinberg equilibrium
D. Reproductive success

Answer

**Step-by-Step Solution:**

1. **Definition of Evolutionary Biology**:
- Evolutionary biology is defined as the study of evolution. It focuses on understanding how life forms have changed over time.

2. **Subfield of Biology**:
- It is considered a subfield of biology, meaning it is a specialized area within the broader discipline of biology.

3. **Focus on Evolutionary Processes**:
- The study involves various evolutionary processes, which include:
- **Natural Selection**: The process where organisms better adapted to their environment tend to survive and produce more offspring.
- **Common Descent**: The concept that all living organisms share a common ancestor.
- **Speciation**: The process by which new species arise.

4. **Diversity of Life**:
- Evolutionary biology helps explain the diversity of life on Earth, detailing how different life forms have evolved and adapted over time.

5. **Conclusion**:
- Therefore, the correct answer to the question "Evolutionary biology is the study of" is the history of life forms on Earth.

**Final Answer**: Evolutionary biology is the study of the history of life forms on Earth.

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