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Can a species become extinct independent of a mass extinction event? How many species have to go extinct for it to qualify as a mass extinction?
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Biology, 22.06.2019 06:30, chrischris1
How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased
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Biology, 22.06.2019 12:30, MikeCrotch19251
Are the layers of rock above and below the coal older or younger?
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Biology, 22.06.2019 15:40, yourfreeshoppep3u91x
Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation
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Biology, 22.06.2019 16:00, cbittlelindseypbbml5
Draw a simple labelled diagram if a collenchyma tissue
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Can a species become extinct independent of a mass extinction event? How many species have to go
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