POGIL Ecological Pyramids How does energy flow through an ecosystem? – Flashcards
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What is the source of all energy in the pyramid in Model 1
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Sunlight hitting the earth's surface
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How much energy does this source provide to a square meter of the Earth per year? (be sure your answer includes units)
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3,190,000 kcals
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Label the pyramid levels in Model 1 with the following: primary producers, primary consumers, secondary consumers, and tertiary consumers
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Oak tree leaves are the primary producers Caterpillars are the primary consumers Blue Jays are the secondary consumers Hawks are the tertiary consumers
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What percentage of the source energy from question 1a is absorbed by the oak leaves in Model 1?
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8 %
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By what process do the oak leaves harness this energy?
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photosynthesis
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Describe how the consumers in one level of the pyramid obtain energy from the organisms at the previous level of the pyramid
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By consuming them
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How much energy per year do the caterpillars in Model 1 obtain from eating the leaves in a square meter of the oak tree?
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4,000 kcal
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What percentage of the energy that was originally absorbed by the oak tree leaves is passed on to the caterpillars
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13.5%
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What percentage of the energy absorbed by the oak leaves is not passed on to the caterpillars
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84.3%
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With your group, list at least three possible uses and/or products of the energy abosrbed by the oak leaves that did not contribute to the production of biomass.
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Photosynthesis, heat,leaves changing colors
