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Study
Module 6 DBA
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Explain natural selection
Only the strong survive and make offspring
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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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Compare relative and absolute time
relative is approximate based on comparison; absolute is exact in minutes, days, seconds, years, etc..
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Does Katelyn have any pets?
yes a dog
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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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Explain evolution
species of organisms change over time
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What is Katelyn's favorite activity?
writing novels
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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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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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What is Katelyn's favorite Anime?
she is a true anime lover and can never have just one. she likes demon slayer, promised neverland but only s1
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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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What is a geologic timescale?
A model of events organized by major geological and biological events.
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What is an example of Relative dating used in science?
scientists relate rock layers to each other using index fossils; superpositioning
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When did Katelyn start writing her latest novel?
11 years old
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Describe one of the many interesting facts about Katelyn.
She is a ghostwriter.
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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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True or False? -Fossils are bones from long ago.
False- Fossils can form from bones, but the process of fossilization gradually transforms the bones—or other remnants of the organism—into rock.
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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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Did mammals exists with Dinosaurs?
yes. Small ones similar to rats; Megazostradon
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Describe adaptation
adjustments species make to survive changes in the environment
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What is Katelyn's favorite color?
Black
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