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

What is the most abundant element in the universe?

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Which type of blood vessel carries blood away from the heart?

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Which of the following is a fundamental force in nature?

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What is the primary function of red blood cells (RBCs) in the human body?

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Which vitamin is responsible for blood clotting?

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Which part of the cell is responsible for energy production?

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Which gas is most abundant in Earth’s atmosphere?

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

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

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What is the chemical formula for carbon dioxide?

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