Phosphorus Cycle

What is the role of decomposers in an Ecosystem? 

• They recycle matter and nutrients to form fossil fuels
• They are burn and release as carbon dioxide
• Decomposers are responsible to turn oxygen into carbon dioxide
• They recycle energy back to the sun

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This is NOT a part of the phosphorus cycle.

• Phosphate is incorporated into sedimentary rocks

• Phosphate bound to soil

• Atmospheric phosphate

• Phosphate is absorbed from the soil by plants

Phosphorous is passed from plants to ____ who eat them

• plants
• animals
• scavengers

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NGSS.MS-LS2-3

_____ brings phosphorous into our waterways. .

• precipitation
• runoff
• transpiration
• condensation

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NGSS.MS-LS2-3

Which of the following statements is true of the phosphorus cycle?

• Phosphorus enters the atmosphere as phosphates.
• The phosphorus cycle utilizes the processes of erosion, and weathering.
• Phosphates are used in carbohydrate and glucose storage.
• The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants.

What role do decomposers play in the phosphorous cycle?

• absorb phosphorous 
• release phosphorous into atmosphere
• return phosphorous into the soil
• combustion

This is released by the weathering of rocks.

• Carbon
• Oxygen
• Phosphorus
• Nitrogen

Too much phosphorus in waterways (rivers, lakes) can lead to___________.

• eutrophication

• Nothing

• Death

• diseases

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An algal bloom is the rapid growth of a population of

• fungi

• protozoans

• algae

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NGSS.MS-LS2-4

Organisms that break down dead plants & animals and release nitrogen back into atmosphere...

• bacteria

• plants

• animals

• producers

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NGSS.MS-LS2-3