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Life Science Chapter 18

Authored by Charles Martinez

Science

7th Grade

NGSS covered

Life Science Chapter 18
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An environmental study reporting on the way temperature, water quality, and minerals affect the animals in a salt marsh would be considering which level of organization?

ecosystem

community

population

individual organism

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

NGSS.MS-LS2-4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If scientists are studying the egrets, herons, marsh crabs, and cordgrass, but not the water or rocks in a salt marsh, what level of organization would they be studying?

ecosystem

community

population

individual organism

Tags

NGSS.MS-LS2-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the lowest level of environmental organization that three male egrets would all belong in together?

ecosystem

community

population

individual organism

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which type of symbiosis do organisms help each other?

commensalism

community

mutualism

parasitism

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Two members of the same species fight over who gets a certain food. Members of different species try to take over a certain nesting area. These are both examples of

commensalism

mutualism

competition

community

Tags

NGSS.MS-LS2-2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Limiting factors determine an area's carrying capacity because

the number of animals is unlimited

animals need resources to survive

ecosystems are small

the number of animals is limited

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

After one species disappears, the other species in the ecosystem

are unaffected

die

are thrown out of balance

benefit

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-2

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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