ECOLOGY
ENERGY FLOW AND THE FOOD CHAIN
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A tree dies in the forest and organisms break down the wood until it’s gone.
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A bear needs lots of nutrients in the summer so that it can hibernate all winter.
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A person eats a sandwich and throws away the scraps.
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A little fish eats plankton and then a bigger fish eats the little fish.
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Detailed explanation-1: -Microorganisms like bacteria and fungi break down organic remains of plants/animals and add them to the soil. So, they are called decomposers.
Detailed explanation-2: -Producers use energy and inorganic molecules to make food. Consumers take in food by eating producers or other living things. Decomposers break down dead organisms and other organic wastes and release inorganic molecules back to the environment.
Detailed explanation-3: -Consumers interact with producers by eating them as well as other consumers in order to gain this energy. Decomposers break down dead and decaying producers and consumers in order to absorb their nutrients and gain energy as well.
Detailed explanation-4: -Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.