Why are plants always at the base of the pyramid of biomass?
Plants capture light energy and transfer it to chemical energy. They make food which is then eaten by animals. Plants start the process of energy transfer in living organisms.
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What is the source of energy for pyramids of biomass?
Sunlight.
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Which process in cells releases energy from food material?
Respiration.
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Animals are sometimes kept in warm sheds. Explain why.
To prevent them using (wasting) energy for movement, and to maintain their body temperature. The energy is used for growing (meat production).
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Suggest what is meant by 'food miles'.
How far food must be carried from the farm to the shop or table.
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Why aren't fishermen allowed to remove small, young fish?
The population could become extinct if the young fish don't grow and reproduce.
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What is grown to produce mycoprotein?
The fungus Fusarium.
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Give an example of a detritus feeder.
Worms.
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What is meant by a 'decomposer'?
Microorganisms (bacteria and fungi) which breakdown/digest waste materials from animals and plants or dead organisms.
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Which process takes carbon dioxide out of the atmosphere?
Photosynthesis.
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What is meant by a 'carbon sink'?
Something which 'locks up' more carbon than it releases.
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Other cards in this set
Card 2
Front
What is the source of energy for pyramids of biomass?
Back
Sunlight.
Card 3
Front
Which process in cells releases energy from food material?
Back
Card 4
Front
Animals are sometimes kept in warm sheds. Explain why.
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