Which of the following is the best definition of empirical evidence?
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a. evidence based on personal beliefs or preferences
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b. evidence gathered through direct observation
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c. a set of untested data used to support product claims
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d. evidence that supports a scientific hypothesis
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Which element is found in both dna and proteins

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

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.