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Biology, 01.10.2019 08:10 jasminemarie610

Which statement is an example of a scientific theory?
a. all living organisms are composed of one or more cells, which came from pre-existing cells.
b. hummingbirds do not like the color white because they visit other colored flowers more often.
c. the amount that caffeine affects a person's heart rate differs based on the person's age.
d. the earth is the third planet from the sun and has one moon, which orbits the earth.

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Which statement is an example of a scientific theory?
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