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Biology, 22.06.2019 15:00
Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.
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Biology, 22.06.2019 23:00
Sarah and john are having a discussion on genetic diversity sarah believes it happens over a long period of time john believes it happens immediately who is correct
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Biology, 23.06.2019 00:40
How do herbicide-resistant plants farmers? a.farmers can spray for weeds without killing the crops b.the plants kill the weeds c.the soil is enriched for future plantings
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Biology, 23.06.2019 02:00
Mutations can be categorized based on the kind of effect they have on an organism
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The fur of mammal what them from the cold...
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