Biology, 13.01.2020 23:31 Laners0219
Hypothesis a: if heart rate is related to caffeine intake, then coffee drinkers will have higher heart rates.
hypothesis b: if a higher heart rate is related to caffeine intake, then the heart rate of most people will be higher 30 minutes after they drink a cup of coffee.
which hypothesis is more useful and why?
a. the two hypotheses are equally useful.
b. hypothesis a is more useful because it’s true.
c. neither hypothesis is useful because they aren’t testable.
d. hypothesis b is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Answers: 2
Biology, 21.06.2019 16:00
Which of the following is the main purpose of a human community?
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Biology, 22.06.2019 06:00
Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time
Answers: 1
Biology, 22.06.2019 10:30
Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection
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Hypothesis a: if heart rate is related to caffeine intake, then coffee drinkers will have higher he...
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