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25
×
Briefly explain the three types of interactions that can take place in an ecosystem.
Mutualism, commensalism, parasitism.
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trap
No points!
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gift
Win 25 points!
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fairy
Take points!
5
10
15
20
25
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lifesaver
Give 10 points!
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20
×
Mutualism often takes place in our oceans. Discuss two ways in which it happens.
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10
×
How can parasites affect humans?
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baam
Lose 20 points!
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seesaw
Swap points!
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rocket
Go to first place!
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banana
Go to last place!
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25
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What happens in a parasitic relationship? How are wasps parasitic?
An organism of one species benefits at the expense of an organism of another species.
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lifesaver
Give 25 points!
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star
Double points!
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shark
Other team loses 10 points!
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lifesaver
Give 10 points!
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boom
Lose 50 points!
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star
Double points!
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gift
Win 20 points!
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baam
Lose 5 points!
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15
×
What is a niche? Provide two examples.
An organism's specific role in the community.
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20
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What is a commensalistic relationship? Support your answer with an example.
When one organism benefits without harming the other.
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20
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Different species eat different foods and hunt at different times. How does this help the populations of an ecosystem survive?
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15
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Do all parasites kill their hosts? Give an example of a parasite and explain its relationship with its host.
No.
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10
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What is competition in an ecosystem?
The attempt by organisms to obtain a resource that is available in a limited supply.
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15
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Explain how the nitrogen cycle is an example of mutualism.
It benefits both participants.
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