Short Test ECOSYSTEM

Ecosystem

Try solving in 20 minutes

1. State the difference between the first trophic levels of detritus food chain and grazing food chain.
2. 8How does primary succession start in water and lead to the climax community? Explain.
3. Why are the pyramids referred to as 'upright' or 'inverted'? Give two examples of inverted pyramids.
4. Why are energy pyramid always erect?
5. Write the equation that helps in deriving the net primary productivity of an ecosystem. Differentiate between primary & secondary productivity.
6. Explain the simplified model of carbon cycle in nature.