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Girls question only** I am waiting for my period. Normally it should happen before a week. Should I worry or might be something hormonal?

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Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.

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Biology, 21.06.2019 23:30

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Biology, 22.06.2019 15:00

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Biology, 22.06.2019 17:00

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Girls question only** I am waiting for my period. Normally it should happen before a week. Should I...

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Biology, 04.03.2021 03:40

What’s a focus question I could write about any of these topics?