Identifying Food Chains and Food Webs
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Last updated 12:09 AM on 10/30/25
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5 Terms
1
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What is the source of energy for all ecosystems?
the Sun
2
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Autotroph
producers; utilize inorganic compounds (including CO2) to self-feed themselves
3
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Heterotroph
consumers; obtain organic molecules by ingesting other organisms
4
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What are always the units of energy in a food pyramid?
KJm-2yr-1
5
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Why does each level get smaller? Explain in terms of energy flow
Because energy is also lost as heat; energy flows at 13% efficiency from previous trophic level
Note 
Flashcards (31)