ECOLOGY
ENERGY FLOW AND THE FOOD CHAIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which process occurs at each link in a food chain?
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All the energy is stored in a newly made structure
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Some energy is released into the environment as heat
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Chemical energy is recycled
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Atoms cycle among living organisms, producing energy
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Explanation:
Detailed explanation-1: -At each step up the food chain, only 10 percent of the energy is passed on to the next level, while approximately 90 percent of the energy is lost as heat.
Detailed explanation-2: -Energy enters food chains as light energy from the Sun, and producers (plants) change this light energy into energy stored in food molecules. When living things use stored food energy to live and move and grow, heat energy is released into the environment, but living things can’t capture and reuse this energy.
Detailed explanation-3: -The model that represents many intersecting food chains and pathways in which energy can flow is called a food web.
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