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

What is the main purpose of stomata in plants?

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Which process separates light into its component colors?

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Which part of the plant conducts water?

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Which disease is caused by the deficiency of vitamin C?

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Which organ is responsible for detoxifying harmful substances in the human body?

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What is the main component of natural gas?

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Which component of blood carries oxygen?

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Which element is the most abundant in the Earth’s crust?

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Which vitamin is essential for calcium absorption?

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What is the main function of the ozone layer?

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