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- 1. Multiple Choice
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
- 2. Multiple Choice
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.
- 3. Multiple Choice
Autotrophs _________________________
use photosynthesis.
are able to survive without oxygen.
are primar consumers.
cannot assimilate carbon.
- 4. Multiple Choice
A zebra is an example of
a secondary consumer
a producer
a primary consumer
a detritivore
- 5. Multiple ChoiceWhat percentage of energy is passed on to each tropic level?10%50%90%100%
- 6. Multiple Choice
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
- 7. Multiple ChoiceHow to calculate Net Primary Production:(GPP)(respiration)=NPPGPP/respiration=NPPGPP+respiration=NPPGPP-respiration=NPP
- 8. Multiple Choice
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
- 9. Multiple ChoiceOxygen is essential to _______________.photosynthesisglycolysiscellular respirationfermentation
- 10. Multiple Choice
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
- 11. Multiple Choice
Producers rely on _____ to release chemical energy and consumers rely on ____ to release chemical energy.
Cellular Respiration; photosynthesis
Cellular Respiration; cellular respiration
photosynthesis; cellular respiration
photosynthesis; photosynthesis
- 12. Multiple Choice
In a food pyramid, which organism can be found on the bottom?
Primary Consumers
Producers
Secondary Consumers
Herbivores
- 13. Multiple Choice
At which trophic level are dragonflies that consume mosquitoes that feed on herbivorous mammals?
Primary Producers
Decomposers
Primary Consumers
Secondary Consumers
Tertiary Consumers
- 14. Multiple ChoiceAn ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?They break down dead organisms to return nutrients to the soil.They produce their own food for survival.They play a role in preventing weathering and erosion.They provide most of the energy to consumers.
- 15. Multiple Choice
An organism that feeds on plant and animal remains and other dead matter is called a ____________________.
decomposer
carnivore
omnivore
detritovore
- 16. Multiple Choice
What energy role do the kelps and other algae have in this food web?ProducerComposerConsumerDecomposer - 17. Multiple ChoiceWhich organism on the food web is an omnivore?SnakeMouseGrasshopperGreen Plant
- 18. Multiple ChoiceA third-level consumer has to be which type?Carnivore.Decomposer.Producer.Herbivore.
- 19. Multiple Choice
The net primary production of a pine forest on a lava flow on Mount Fuji is about 175,000kcal/m2/yr, and the plant respiration is estimated to be 115,000kcal/m2/yr. What is the total amount of energy transferred during photosynthesis for this ecosystem
60,000
115,000
175,000
290,000
- 20. Multiple ChoicePlants receive 4500 cal from the sun. How many calories will a primary consumer receive?45004.545450
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