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9 Cards in this Set
- Front
- Back
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What is the main source of energy for all living things?
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The Sun
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The amount of biomass at each energy level gets less and less in a food chain. True/False
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True
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Biomass and Energy are not lost at each stage of a food chain. True/False
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False (Read the question)
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What happens if you stop animals moving about and keep them warm?
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They lose less energy and makes the food production much more efficient
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What is the name for the things that return materials to the environment as animals die?
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Decomposers
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Why do dead materials decay?
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Because they are digested by microorganisms
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What are the best conditions for decomposers?
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Warm, moist conditions and a rich supply of oxygen
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What is the carbon cycle?
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The constant cycling of carbon in nature
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How is CO2 removed from the atmosphere? How is it returned?
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Photosynthesis. It is returned by respiration and combustion
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