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10
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Turtles that lived on the Galapagos islands have different neck lengths. Why did this variation exist?
Turtles lived in different habitats and had features that allowed for them to access food available.
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10
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Describe stabilizing selection.
selection that favors mid-type traits
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10
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Which organism is most distantly related to humans. How do you know?
hawk or frog--same number of DNA differences; squirrel has most similar DNA pattern
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10
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Describe disruptive selection.
Selection that favors both extreme type traits.
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5
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How does variation in a population occur?
Random mutations
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5
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Provide an example of a vestigial structure.
human tailbone, whale pelvis
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5
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Define "fitness"
adaptations allow for organisms to survive and reproduce based on the environment in which they live
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lifesaver
Give 15 points!
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magnet
Take 20 points!
Okay!
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shark
Other team loses 25 points!
Okay!
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baam
Lose 25 points!
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10
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Provide an example for how species vary over time.
Species that have gone extinct resemble species currently living today.
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10
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How do the wings of a bat and the fin of a whale provide evidence for evolution?
These structures are homologous (same bone types) indicating that these organisms were related by a common ancestor.
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boom
Lose 50 points!
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gift
Win 15 points!
Okay!
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fairy
Take points!
5
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25
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banana
Go to last place!
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5
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What is natural selection?
process in which organisms better adapted to their environments are more likely to survive and reproduce offspring
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trap
No points!
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shark
Other team loses 25 points!
Okay!
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gift
Win 25 points!
Okay!
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baam
Lose 20 points!
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10
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Describe directional selection.
Selection that favors extreme type traits.
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10
×
How does embryological evidence support Darwin's theory of evolution?
Organisms looked the same early in development and developed structural differences as they grew.
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10
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Provide an example of variation in a population of butterflies might vary.
wing shape, size, pattern, etc.
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