Changes in an ecosystem

What is an ecosystem?

• a biological community of interacting organisms and their physical environment

• a system of biology

• an area of living things that has humans, animals, and producers.

What happens when humans bulldoze an ecosystem?

• a natural disaster happens

• only trees will be destroyed

• the animals and plants will be forced to go away

• the community will be destroyed

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Are nonliving components of an ecosystem important? Why?

• No because they aren't related in nature at all

• Yes because of air and the sun

• No because air and the sun are not nonliving

• Yes because animals eat nonliving things

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Why do organisms interact with their environment?

• To have fun to have a long longevity

• To live by helping each other

• To live by eating and helping each other

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Ecosystems are complex. What features must an ecosystem have to be balanced?

• Consumers and decomposers

• Producers and nonliving things

• Producers, nonliving things, consumers, and decomposers

• producers, consumers, and decomposers

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NGSS.MS-LS2-3

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Which is most likely an example that is not a human-caused disturbance in an ecosystem is.......

• humans moving through the forest

• bulldozing

• transaction of organisms

• forest clearing

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NGSS.MS-ESS3-4

What kind of natural disaster helps some forest communities by allowing some trees to release their seeds, by clearing away deadwood, and by encouraging new growth?

• earthquake

• tornado

• fire

• volcanic eruption

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An invasive species is also consider a

• Exotic species

• Vasive species

• Species born in the place, but religion is different

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What is an invasive species?

• A species born in a place

• Species born in the right place

• Species that are not native to a specific location

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NGSS.MS-LS2-5

Natural Changes

• A change made by organisms

• A change by humans

• A change by weather

• A change by natural events

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NGSS.MS-ESS2-2

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