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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In a New England White Pine Forest, the GPP is 70 grams per square meter per day. Respiration is 25 grams per square meter per day. What is the NPP for this forest?

• 95

• 70

• 45

• 25

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