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- 1. Multiple Choice
Decomposition is found during which of the following cycles?
Choose all the apply.
Phosphorus
Cycle
Carbon
Cycle
Nitrogen
Cycle
Water Cycle
- 2. Multiple Choice
Nitrogen is found in which of the following:
Fats
(lipids)
Nucleic Acids
(DNA + RNA)
Proteins
Carbohydrates
(Sugar + Starch)
- 3. Multiple Choice
Which of the following is evaporation of water from plants?
Precipitation
Nitrification
Transpiration
upllift
- 4. Multiple Choice
The Phosphorus cycle is important because phosphorus is contained in
sugars
DNA
proteins
starches
- 5. Multiple Choice
Carbon Dioxide (CO2) is released in which of the following processes?
photosynthesis
decomposition
combustion
cellular respiration
- 6. Multiple Choice
Animals get the carbon they need by
Nitrogen fixation
photosynthesis
cellular respiration
ingestion of plants and animals
- 7. Multiple Choice
In the carbon cycle, the only process that removes CO2 from the atmosphere is
combustion
cellular respiration
decomposition
photosynthesis
- 8. Multiple Choice
The main way nitrogen is removed from the atmosphere and changed into a form plants can use is
Nitrogen Fixation
Nitrification
Ammonification
Denitrification
- 9. Multiple Choice
Each process in the nitrogen cycle is carried out by
bacteria
mice
cows
plants
- 10. Multiple Choice
Decomposers include which of the following?
plants
fungi
bacteria
algae
- 11. Multiple Choice
Ammonification is the process by which decomposers convert wastes and dead organisms into ____.
ammonium
NH4+
Nitrate
NO3-
Nitrite
NO2-
nitrogen gas
N2
- 12. Multiple Choice
Denitrification is the process by which bacteria
Make ammonium
NH4+
Create Nitrate
NO3-
Create Nitrite
NO2-
Return nitrogen gas to the air
N2
- 13. Multiple Choice
Nitrification is the process by which bacteria
Make ammonium
NH4+
Create Nitrate
NO3-
Create Nitrite
NO2-
Return nitrogen gas to the air
N2
- 14. Multiple Choice
Biogeochemical Cycles are important because
matter in an ecosystem is finite and must be recycled
living things need Nitrogen, Carbon, and Phosphorus to make the building blocks of cells
they aren't important and it is a waste of time learning about them
If matter didn't cycle, organisms would eventually run out of materials to build new cells
- 15. Multiple Choice
Plants can take in Nitrogen directly from the air.
TRUE
FALSE
- 16. Multiple Choice
Legumes are plants like beans, clover, and alfalfa that have bacteria living in nodules on their roots. These bacteria fix nitrogen into a form the plant can use and in return the bacteria get nutrients from the plant as well as a place to live.
This relationship can be best described as ____.
Competition
parasitism
mutualism
commensalism
- 17. Multiple Choice
Which of the following are true of biogeochemical cycles?
They ensure that nutrients are used only once by organisms.
The create new materials to replace lost ones.
They increase the total amount of matter over time.
They can be affected by human activity.
- 18. Multiple Choice
Which of the following is an example of how biogeochemical cycles are important in sustaining life?
The atoms of water molecules are destroyed during a drought.
Oxygen atoms are converted into carbon during cellular respiration.
Nitrogen in wastes are converted into useable nutrients for other organisms.
New carbon atoms are created during the carbon cycle.
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