Topic Details (Notes format)

Ecosystem and Energy Flow

Subject: General Science

Book: NCERT Biology Class 12

Study of energy transfer in ecological systems.
- **Food Chains and Food Webs**:
- Trophic levels and their roles.
- **Ecological Pyramids**:
- Pyramid of energy, biomass, numbers.
- **Energy Flow in Ecosystems**:
- Primary and secondary production.

**Possible Exam Questions:**
1. Define food chain and food web with examples.
2. What are the different types of ecological pyramids?
3. Explain the process of energy flow in an ecosystem.
4. How does human activity impact the energy flow in ecosystems?
5. Discuss the significance of trophic levels in an ecosystem.

Practice Questions

Which acid is found in the human stomach?

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What is the main function of the ozone layer?

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Which gas is most abundant in Earth’s atmosphere?

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Which component of blood carries oxygen?

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What is the term for an organism that can make its own food?

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

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What is the chemical formula of methane?

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Which organ is responsible for filtering blood in the human body?

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Which scientist is known for the laws of motion?

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Which vitamin is essential for calcium absorption?

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