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5
×
Describe half-lives as it applies to radiometric dating
The time it takes for half of the parent isotope to decay
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5
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Describe one of the many interesting facts about Katelyn.
She is a ghostwriter.
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seesaw
Swap points!
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fairy
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5
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25
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fairy
Take points!
5
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25
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baam
Lose 25 points!
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10
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Name one geologic and one biologic from Jurassic period
continents began to move, Atlantic ocean opens; Dinosaurs existed, Fossil fuels are forming
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5
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How are scientists able to get an exact age of a fossil?
By analyzing the radioactive decay of that fossil.
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5
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Compare relative and absolute time
relative is approximate based on comparison; absolute is exact in minutes, days, seconds, years, etc..
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5
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What is paleontology?
the study of once living things; the branch of science concerned with fossil animals and plants.
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banana
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gift
Win 25 points!
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shark
Other team loses 25 points!
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banana
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5
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What is a geologic timescale?
A model of events organized by major geological and biological events.
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5
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Which of the following is a technique used in absolute dating?
Radiocarbon dating
Superposition
Original horizontality
index fossil correlation
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5
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Describe adaptation
adjustments species make to survive changes in the environment
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monster
Reset all scores!
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gold
Win 50 points!
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gift
Win 10 points!
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baam
Lose 15 points!
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10
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Why is natural selection a mechanism for biological change?
It drives evolutionary change by passing on traits and becoming dominant version of species.
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5
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What is Katelyn's favorite genre of music to listen to?
She does not have a favorite. She listens per her mood.
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10
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How long would it take 250 grams of Carbon 14 to become 62.5 grams? (HLT 5,730) How many half lives have passed?
11,460 years; 2
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5
×
Examine the following diagram. Place the layers in order from oldest to youngest.
A,B,D,C
D,C,B,A
C,B,A,D
D,A,B,C
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