Carbon Nitrogen Cycle

What are the most important organisms to assist in the cycling of nitrogen?

• plants

• animals

• bacteria

• humans

How does the carbon in grass become part of a lion?

• The lion eats the grass

• Carbon from the grass doesn't end up in a lion

• The carbon ends up in the lion's food chain

• The lion breathes in carbon given out by the plant

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NGSS.MS-LS1-6

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How is nitrogen transferred from producers to consumers?

• Feeding

• Hunting

• Photosynthesis

• Absorption

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NGSS.MS-LS2-3

How do plants get the nitrogen they need?

• from the air

• from the soil or water in which they live

• from the Sun

• from broken-down rocks

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

If the plant population decreased, the amount of carbon would _________.

• Stay the same

• Increase

• Decrease

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NGSS.MS-LS1-6

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The swelling on the roots of a soybean are called

• Noodles

• Nitrogen

• Nodules

• Legumes

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NGSS.MS-LS1-5

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Growing legumes such as alfalfa or soy beans increases

• denitrification

• nitrogen fixation

• ammonification

• ammonium oxidation

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NGSS.MS-LS2-3

What role do plants play in the carbon cycle?

• A) They release carbon dioxide during photosynthesis

• B) They absorb carbon dioxide during photosynthesis

• C) They convert carbon dioxide into nitrogen

• D) They have no role in the carbon cycle

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which process in the nitrogen cycle involves bacteria converting nitrogen gas into ammonia?

• A) Nitrification

• B) Denitrification

• C) Nitrogen fixation

• D) Ammonification

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NGSS.MS-LS2-3

How does deforestation affect the carbon cycle?

• A) Increases carbon storage in trees

• B) Decreases carbon dioxide in the atmosphere

• C) Increases carbon dioxide in the atmosphere

• D) Has no effect on the carbon cycle

Tags

NGSS.MS-LS1-6