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G7 Chapter 7 Ecology Beginning

Authored by Morrill Casie

Science

7th Grade

NGSS covered

Used 13+ times

G7 Chapter 7 Ecology Beginning
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19 questions

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1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

What would happen if nitrogen-fixating bacteria were eliminated from the soils in an ecosystem?

More usable nitrogen compounds would build up in soils causing too much growth of different plants.

All nitrogen gas would stay in the atmosphere.

Plants and animals would not get the nitrogen compounds they need to survive.

Ecosystems would have too many usable nitrogen compounds, causing increased growth of animal populations.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

What best describes the pattern shown in this model?

Energy is generated at each level.

An equal amount of energy is available at each level.

Most of the energy at a trophic level passes to the next level.

A small amount of the energy at trophic level is passed to the next level.

Tags

NGSS.MS-LS2-3

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

The increase in temperature will affect the water cycle by:

increasing evaporation rates

decreasing precipitation

stabilizing water levels

having no effect

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

4.

DRAG AND DROP QUESTION

3 mins • 1 pt

Decomposition is an important process in many of the cycles that (a)   .

moves nutrients from soil to the atmosphere

returns only carbon to the soil

breaks down dead organisms to return nitrogen back to the atmosphere

returns nutrients and matter to the soil

Tags

NGSS.MS-LS2-3

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which best describes how energy and matter move through ecosystems?

A) Matter and energy cycle through ecosystems.

B) Energy flows through ecosystems and matter cycles through ecosystems.

C) Energy cycles through ecosystems and matter flows through ecosystems.

D) Energy and matter flow through ecosystems.

Tags

NGSS.MS-LS2-3

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which best explains why less energy is available at each trophic level in an ecosystem?

Less energy is generated by the organisms in higher trophic levels.

Some energy at each level is destroyed and cannot be passed to other organisms.

Energy used for body processes are given off as heat and is not passed to other organisms in a usable form.

The organisms at each level are less efficient at using energy than those in the previous levels.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

7.

DROPDOWN QUESTION

1 min • 1 pt

During photosynthesis, plants release ​ ​ (a)   into the air. Animals require ​ (b)   to survive. When animals exhale, they release ​ (c)   into the air. During photosynthesis, plants take in ​ (d)   from the air.

oxygen
carbon dioxide

Tags

NGSS.MS-LS1-6

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