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monster
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fairy
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5
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25
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rocket
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baam
Lose 5 points!
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15
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birds, reptiles, fish, and humans all have pharyngeal pouches as embryos. What does this tell us about these species?
they are related (have a common ancestor)
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seesaw
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shark
Other team loses 25 points!
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rocket
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banana
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15
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body parts of different species that have the same function, but not the same structure
analogous structures
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15
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body parts in an organism that no longer have a function (like your apendix)
vestigial structure
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15
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Long necks in giraffes are an example of what type of adaptation?
structural
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Ability to decrease their body temperature (in bats) is an example of what type of adaptation?
functional
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15
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The Carbon outline of a plant (which was squeezed by rocks over millions of years) was found. How was this plant fossilized?
carbonization
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15
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A whale fin and a human arm are examples of what type of structures?
homologous structures
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When does a variation become an adaptation?
when it helps an organisms to live longer and reproduce more
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What are variations that cause an organism to live longer and reproduce more?
adaptations
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Scientists find a fossil and find it is 60 million years old. What type of dating are they using?
absolute-age dating
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Which structures (homologous or analogous) show us that species are not related?
analogous
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What is Charles Darwin's theory that organisms change slowly over time?
theory of natural selection
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What are variations caused by?
mutations in DNA
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eraser
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seesaw
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rocket
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thief
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