52. Ecosystems

Energy Flow Through Ecosystems

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Why is the production of waste heat considered inevitable in ecosystems?
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Which of the following statements about NPP & GPP is true?
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Which trophic level has the least available energy (in kilojoules) in a typical food web?
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Energy is moved through any ecosystem via a ________ _________. Which of the following best completes the statement?
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Which members of an ecosystem are directly involved in the flow of energy from one trophic level to another?
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Which of the following is NOT an example of energy transformations in an ecosystem?
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Which of the following diagrams correctly represents an energy pyramid in a living system?
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Which of the following best describes how chemical energy travels up the food pyramid?
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Why are the number of trophic levels in an ecosystem typically limited?
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In this energy pyramid, which trophic level contains the greatest amount of available energy?
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How does energy flow through an ecosystem?
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How do decomposers convert energy for an ecosystem?
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Using the data in this table, calculate the: Net production efficiency of the grass.
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To recycle nutrients, an ecosystem must have, at a minimum, which of the following components?
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In an ecosystem, approximately how much energy is transferred from one trophic level to the next higher trophic level?
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