Ecosystem and Energy Flow Definition, Types, Examples & Uses

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.