Q8 of 18 Page 211

If you want to know more about the flow of energy in an ecosystem, what questions do you ask? (AS2)

i. What is 10% Law?

ii. What happens to the major percentage of energy during energy transfer between trophic levels?


iii. What is the difference between Gross ecological efficiency and Net ecological efficiency?


iv. Why the flow of energy in a food chain is unidirectional?


v. How does a food chain represent the flow of energy?


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Should we use pesticides as they prevent our crop and food from pests or should we think of alternatives? Write your view about this issue and give a sound reason for your answer. (AS1)

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What is a trophic level? What does it represent in an ecological pyramid? (AS1)

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What will happen if we remove predators from food web? (AS2)

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Observe a plant in your kitchen garden, and write a note on the producer-consumer relationship. (AS3)