Topic Details (Notes format)

Evolution

Subject: General Science

Book: NCERT Biology Class 12

Study of the origin and development of life.
- **Darwin’s Theory**:
- Natural selection.
- **Genetic Variations**:
- Mutation, recombination.
- **Evidence for Evolution**:
- Fossil records, homologous structures.

**Possible Exam Questions:**
1. Explain Darwin’s theory of natural selection.
2. What is the role of genetic variations in evolution?
3. Discuss the importance of fossils in evolutionary studies.
4. What is adaptive radiation? Give an example.
5. Differentiate between homologous and analogous structures.

Practice Questions

Which is the largest planet in the Solar System?

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What is the primary source of energy for life on Earth?

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What is the primary component of the Sun?

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Which organelle is known as the "powerhouse of the cell"?

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Which organelle is responsible for photosynthesis in plants?

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Which gas is used in fire extinguishers?

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What is the function of hemoglobin in the blood?

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Which component of blood carries oxygen?

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What is the main component of the human skeleton?

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Which gas is known as "laughing gas"?

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