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20 Cards in this Set
- Front
- Back
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Ecosystem
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Interactions between Biotic and abiotic factors in an area
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First law of thermal Dynamics
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energy cannot be created or destroyed, only transfered
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Second law of of thermal dynamics
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every exchange of energy increases entropy.
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Autotrophs
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Build molecules themselves with photosynthesis and chemosynthesis as an energy source
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heterotrophs
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Depend on the biosynthetic output of other organisms
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Energy Hierarchy
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Primary Producers (autotrophs)
Primary consumers (herbivores) Secondary Consumers (Carnivores) Tertiary Consumers (Carnivores that eat other carnivores) |
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Detrivors eat ____________.
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Detritus
(Detrivor examples: prokaryotes and Fungi) |
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Primary production
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is the amount of light energy converted to chemical energy
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Gross Primary Production
Net Primary Production |
Gross Primary Production(GPP)
-Total light energy converted to chemical energy Net Primary Production (NPP) -GPP energy minus respiration energy used |
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Net Ecosystem Production (NEP)
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the total biomass accumulation during a given period.
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Limiting Nutrient
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Limits primary production
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How much energy does a catipilar extract from a lead?
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1/6th
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Efficiencies of:
Birds and Mammals Fishes Insects |
Efficiencies of:
Birds and Mammals=1-3% Fishes= 10% Insects = 40% |
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Trophic Efficiency
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Percentage of energy transferred from one trophic level to the next.
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Biogeochemical cycles
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Nutrient cycles among biotic and abiotic components.
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Water cycle moved by....
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Evaporation
transporation condensation, precipitation and move on surface and ground water |
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Carbon cycle moved in
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Photsynthes turn Co2 to organic molecules
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Nitrogen Cycle moves by
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From atmosphere n2
Nitrogen fixing bacteria Nh4 Nitrification to NO3 Denitrification to N2 |
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Bioremediation
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use living organisms to detoxify ecosystems
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Biologic Augmentation
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Uses organism to add essential materials
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