All the organisms of all the different species living in the same habitat/ecosystem at the same time
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Producer
- Photosynthetic organism's autotrophs
- Transfer light energy into chemical energy
-Make organic molecules from inorganic molecules
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Consumer
- Heterotrophs
- Get their energy from feeding on "ready made" organic molecules
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Decomposer
- Saprobiotic, bacteria and fungi
- Consumers, use organic molecules from faeces, urine and dead organisms
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Biomass
- Leftovers after respiration has used some organism's molecules
- Mass of carbon per unit area of time
- Dry mass of tissue per unit time
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Calorimetry
- Technique to measure energy content of biomass
- Burn dry biomass in x amount of oxygen
- Heat known volume of water
- Calculate energy content in kJg^-1
- To get dry biomass, heat (80*c) biomass to constant mass to ensure all mass removed
- Use 80*c so
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Gross Primary Productivity
(GPP)
- Energy store in plant biomass (kJm^-2y^-1)
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Net Primary Productivity
(NPP)
- Energy store in plant biomass (kJm^-2y^-1)
- Organic molecules for more cells, growth and reproduction and to be eaten
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NPP = GPP - R
- Equation representing relationship between GPP and NPP
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N = I - (F +R)
- Where N is the energy store in a consumer (kJm^-2y^-1)
- N = what goes in - what comes out
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Other cards in this set
Card 2
Front
- Photosynthetic organism's autotrophs
- Transfer light energy into chemical energy
-Make organic molecules from inorganic molecules
Back
Producer
Card 3
Front
- Heterotrophs
- Get their energy from feeding on "ready made" organic molecules
Back
Card 4
Front
- Saprobiotic, bacteria and fungi
- Consumers, use organic molecules from faeces, urine and dead organisms
Back
Card 5
Front
- Leftovers after respiration has used some organism's molecules
- Mass of carbon per unit area of time
- Dry mass of tissue per unit time
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