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Food Chains (food chains (food chains always start with a producer - make…
Food Chains
food chains
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when a green plant produces glucose some of it is used to make other biological molecules in the plant and these are the plants biomass
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pyramids of biomass
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the bar at the bottom is the producer, then the primary consumer and so on
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predators and prey
their cycles are always out of phase as it takes a while for one population to respond to changes in the other population
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biomass transfer
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some of the glucose is used by the producers to make biological molecules which make up the plants biomass - biomass stores energy
only about 10% of the biomass is transferred to the next trophic level due to:
- organisms don't eat every part of the organism their consuming
- organisms don't absorb all of the stuff in the food they ingest
- some of the biomass is converted into other substances
decomposers
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they secrete enzymes that break it down into small soluble molecules which then diffuse into microorganisms
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