Nutrient Cycle Review

What is happening at 1?

• respiration: releasing CO2
• decomposing CO2 in the soil
• photosynthesis: absorbing CO2
• turning CO2 from the atmosphere into organic molecules

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Photosynthesis

• absorbs CO2
• releases CO2

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Animals obtain the nitrogen they need directly from the

• soil in their habitat
• air they breathe
• plants they eat
• bacteria living within them

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NGSS.MS-LS2-3

NGSS.MS-LS2-1

Bacteria that can use nitrogen in soil to make nitrogen compounds

• Eutrification
• Legumes
• Nitrogen Fixing
• decomposers

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NGSS.MS-LS2-3

What does the long grey arrow pointing to the atmosphere indicate?

• Photosynthesis
• Primary Production
• Respiration
• Assimilation

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What is a natural process which moves carbon?

• Photosynthesis
• Respiration
• Decomposition
• All of the above

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

How nitrogen is "fixed" into useable form for plants...

• through action of bacteria only
• through lightning only
• through action of bacteria & lightning
• through photosynthesis

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NGSS.MS-LS2-3

During photosynthesis, carbon is moved from which reservoir to which reservoir?

• From the atmosphere to the terrestrial biosphere.
• From the troposphere to the terrestrial biosphere.
• From the lithosphere to the terrestrial biosphere.
• From the hydrosphere to the terrestrial biosphere

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NGSS.MS-LS2-3

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The flow of carbon from the biosphere to the atmosphere would be slowed by reducing the

• amount of fertilizer applied to fields.
• number of size of forest fires
• buildup of carbonate rocks
• amount of rain water used for irrigation

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NGSS.HS-ESS2-6

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Organisms use nitrogen to form

• carbohydrates and lipids
• proteins and lipids
• lipids and nucleic acids
• proteins and nucleic acids

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NGSS.MS-LS1-7