Ecosystem Disruptions

After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area?

• Lichens → Shrubs → Grasses → Trees

• Lichens → tree → shrubs→Grasses

• Grasses → Lichens → Shrubs → Trees

• Lichens → Grasses → Shrubs → Trees

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NGSS.MS-LS2-3

A pioneer species is...

• large organism

• the first organisms to adapt to a new environment 

• best organism 

• Abiotic organisms 

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NGSS.MS-LS2-4

First species to arrive in an area

• invasive species

• abiotic components

• pioneer species

• parasites

Would a long-term increase in the average temperature of a region be considered a significant disturbance in the ecosystem?

• Yes, because such a change could have a large-scale impact on wildlife.

• Yes, because any slight change in temperature is considered a disruption.

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NGSS.MS-ESS2-6

NGSS.MS-ESS3-5

NGSS.MS-LS2-4

A low impact disturbance in an ecosystem may include

• filling in and paving over a lake for a parking lot.

• A tree falling over in a thunder storm

Which change would create a new ecosystem?

• a dam flooding a valley

• a lake freezing over

Tags

NGSS.MS-LS2-4

An introduced organism that is able to grow in population with no natural controls is a(n)...

• Intrusive species

• Invasive species

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

All the biotic and abiotic things in an area, interacting together is a...

• Community

• Population

• Ecosystem

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NGSS.MS-LS2-3

Natural disruptions to ecosystems include:

• disease

• floods

• fires

• mining

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NGSS.MS-ESS3-2

NGSS.MS-LS2-4

How do humans cause disruptions in ecosystems?

• resource extraction

• deforestation

• pollution

• introducing non-native species

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4