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8.13B Carbon and Nitrogen Cycle

Authored by Laura Presley

Biology

9th Grade

NGSS covered

Used 1+ times

8.13B Carbon and Nitrogen Cycle
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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How does carbon in a grass plant get into a lion?

The lion eats an antelope that ate the grass

Carbon from grass doesn't end up in a lion.

The lion absorbs the carbon given off by transpiration

The lion breathes in carbon given out by the plant

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NGSS.MS-LS2-3

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2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

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What is happening at 1?

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

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NGSS.MS-LS2-3

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3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

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What would happen within the nitrogen cycle if a bactericide, a substance that kills bacteria, was added to the soil?

The rate at which nitrogen is broken down would increase, resulting in faster absorption by plants.

Microorganisms would not be present to break down the nitrogen into a usable form for plants.

More nutrients would be added to the soil, increasing the amount of nitrogen available to plants.

Nitrogen would be blocked from entering the soil, making it unavailable for plants to use.

Tags

NGSS.MS-LS2-3

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4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When sawdust is added to soil, organisms in the soil will use all the available nitrogen to break the sawdust down. What effect will the lack of nitrogen have on the plants that are near the sawdust?

The plants will not be able to grow.

The plants will grow faster than before.

The plants will be replaced with new plants.

The plants will evolve to no longer need nitrogen.

Tags

NGSS.MS-LS2-1

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5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the carbon and nitrogen cycles to ecosystem stability?

They provide energy to the ecosystem.

They help in the recycling of nutrients.

They increase the population of predators.

They reduce the need for sunlight.

Tags

NGSS.MS-LS2-3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What could be a consequence of disrupting the carbon and nitrogen cycles?

Increased biodiversity

Enhanced plant growth

Ecosystem instability

More oxygen production

Tags

NGSS.MS-LS2-3

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7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Which component can be added to the flask to reduce the concentration of carbon dioxide in the model atmosphere created by the disks?

Bacteria to use carbon during nitrification

Plants to absorb carbon in the process of photosynthesis

Snails to use carbon through cellular respiration

Mushrooms to absorb carbon during decomposition

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

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