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15
×
What do all food chains have in common?
They all begin with a producer.
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15
×
Why is the base of the energy pyramid larger than the top?
Energy is lost as heat at each level, so less energy is available at the top.
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seesaw
Swap points!
Oops!
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magnet
Take 10 points!
Okay!
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fairy
Take points!
5
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25
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baam
Lose 20 points!
Oops!
15
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Three natural changes to an ecosystem are:
Hurricane, Floods Drought (also fire, landslides, tsunami)
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15
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An animal that is captured and eaten
Prey
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15
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In order for an ecosystem to be healthy, what must exist between predators and prey?
Balance
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15
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Since humans can eat food from many ecosystems, they are ____?
part of many food webs.
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lifesaver
Give 15 points!
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rocket
Go to first place!
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rocket
Go to first place!
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banana
Go to last place!
Oops!
15
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Slow changes that take place in an ecosystem after a disturbance.
Succession
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heart
Other team wins 15 points!
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fairy
Take points!
5
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25
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gift
Win 5 points!
Okay!
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banana
Go to last place!
Oops!
15
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A field mouse that eats grass is call a ____?
first level consumer
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15
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How are food webs related to food chains?
Food webs are overlapping food chains.
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eraser
Reset score!
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fairy
Take points!
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25
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rocket
Go to first place!
Okay!
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banana
Go to last place!
Oops!
15
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If there are not enough prey, what happens to the predators?
They may starve
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15
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What kind of ecosystem allows many species of organisms to meet their needs?
A healthy ecosystem
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15
×
If the number of predators is decreased, what happens to the population of prey animals?
The number of prey can increase too much
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