APES 1.8-1.11 Quiz

If gross primary productivity in a wetland is 3 kg C/m²/year and respiration is 1.5 kg C/m²/year, what is the net Primary Productivity of the wetland?

• 1.5 kg C/m²/year

• 2 kg C/m²/year

• 3 kg C/m²/year

• 4.5 kg C/m²/year

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The gross primary productivity of an ecosystem is?

• the total amount of biomass.

• the total energy captured by photosynthesis.

• the energy captured after accounting for respiration

• the energy available to primary consumers.

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Autotrophs _________________________

• use photosynthesis.

• are able to survive without oxygen.

• are primar consumers.

• cannot assimilate carbon.

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A zebra is an example of

• a secondary consumer

• a producer

• a primary consumer

• a detritivore

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What percentage of energy is passed on to each tropic level?

• 10%
• 50%
• 90%
• 100%

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The equation for photosynthesis

• 4HF+SiO₂ + Light Energy = SiF₄+2H₂O

• 2Na+2H₂O + Light Energy = 2NaOH+H₂

• 6CO₂ + 6H₂O + Light Energy = C₆H₁₂O₆ + 6O₂

• 2K+2H₂O + Light Energy = 2KOH+H₂

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How to calculate Net Primary Production:

• (GPP)(respiration)=NPP
• GPP/respiration=NPP
• GPP+respiration=NPP
• GPP-respiration=NPP

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If gross primary productivity is 5 gC/m²yr, and the producers need 1.5 gC/m²yr for their own respiration, what is the net primary productivity?

• 3.5 gC/m²yr

• 6.5 gC/m²yr

• -3.5 gC/m²yr

• 7.5 gC/m²yr

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Oxygen is essential to _______________.

• photosynthesis
• glycolysis
• cellular respiration
• fermentation

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Energy enters a system as sunlight and a producer is able to produce 10 kilograms of tissue. If eaten, the producer would produce about ___ kilograms of a consumer tissue that would provide about ____ kilograms of tissue for a secondary consumer

• 100; 10

• 10; 1

• 100; 1

• 1; 0.1

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