Changes in the Ecosystem!

Why would humans cut down forests?

• to build roads

• to build buildings

• to build factorys

• all of the above

Negitivly, what is the effect of people cutting down forests?

• people build roads to connect to each other

• people build houses to get shelter

• wildlife loses their homes

• people build buildings for offices

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Positively, what is the effect of people cutting down forests?

• wildlife loses their home

• people get shelter by building homes

• there is more carbon dioxide in the atmosphere

• the soil gets eroded

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What is an ecosystem?

• an envirment where orginsims live

• nowhere

• somewhere where animals all animals work together to live

• a place where food webs don't take place

What is something negative about killing an ecosystem?

• it would be a benifit for the orginisms that live there

• the orginisms that live there will eventually die

• nothing will happen

• answers a & b

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NGSS.MS-LS2-4

Which of these would benifit a desert ecosystem?

• the sunlight there dies

• all the producers there die

• more producers grow

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Look at the picture above. Which options would most likely happen if all the trees in the forest die?

• all the orginisms in the ocean next to the forest will die

• the orginisms would move away to another ecosystem

• nothing would happen

• all the orginisms in forest would die

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How would liter effect a marine ecosystem?

• animals could die from eating the liter

• it would heal the animlas if they ate the liter

• nothing would happen

• a disease would spread

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What WOULDN'T happen if liter was spread in an ecosystem?

• animals would die

• animals would heal

• an epidemic may spread

• plants would die

What is a pro AND con of humans effecting the ecosystem?

• animals lose their shelter due to people cutting trees

• animals get more shelter, but humans lose their shelter

• humans build more buildings, but animals lose their shelter

• humans can build way more buildings when they cut trees