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15
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What is the name of the aggressive kind of bird imported to the US from England?
starling(s)
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monster
Reset all scores!
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fairy
Take points!
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25
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fairy
Take points!
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baam
Lose 25 points!
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thief
Give points!
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25
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shark
Other team loses 15 points!
Okay!
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gift
Win 20 points!
Okay!
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baam
Lose 10 points!
Oops!
15
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How did zebra mussels travel from Europe to the United States?
on cargo ships (that have ballast tanks!)
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15
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Why do kudzu plants grow faster in the southern part of the US than in Japan?
Because the climate there is warm and humid, which is good for kudzu.
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What did the US government do in the 1930s that sped up the spread of kudzu?
It hired hundreds of workers to plant kudzu (because they believed kudzu helped prevent soil from being washed away).
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15
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Where did the killer bees in Brazil originally come from?
Africa
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15
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Who sped up the the pace (made it faster) of alien invasions?
Humans (!!!)
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15
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Why did ecosystems stay in balance for most of Earth's history?
Because they could change GRADUALLY over time.
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boom
Lose 50 points!
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rocket
Go to first place!
Okay!
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gift
Win 20 points!
Okay!
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thief
Give points!
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25
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thief
Give points!
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rocket
Go to first place!
Okay!
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fairy
Take points!
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25
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baam
Lose 20 points!
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15
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How can alien invaders dangerous to an ecosystem?
They upset the balance of an ecosystem.
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15
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Which places are in big danger from alien invasions today?
islands (like Australia)
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15
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Name three things humans do that speed up the pace of alien invaders?
hunt, gather, farm
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15
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Name one thing you can do to help solve the problem of alien invasion.
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15
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How does kudzu damage forests?
It covers trees and makes it difficult for them to get sunlight.
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