These organisms are low in number, but serve a key role in the environment. Without them, the ecosystem could collapse. Example: otters help maintain kelp forests
keystone species
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seesaw
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fairy
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fairy
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banana
Go to last place!
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15
Something is missing! What organism(s) should be drawn in around #5?
decomposers
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eraser
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rocket
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shark
Other team loses 20 points!
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baam
Lose 25 points!
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15
A gene has two alleles, B = brown, b = white. The frequency of white-haired goats is 25%. What is the frequency of heterozygous individuals?
0.5
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15
Name an herbivore.
any organism that eats plants
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15
Explain two density-dependent factors that limit population growth past carrying capacity.
The change in frequency of an existing gene variant in the population from one generation to another due to random chance; effects more severe in small populations.
genetic drift
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heart
Other team wins 20 points!
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gift
Win 25 points!
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fairy
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thief
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15
Identify & describe the outgroup.
lamprey; most differences compared to the rest; distantly related to the rest of the organisms
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15
Describe one adaptation that prey have to help avoid getting eaten.
