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BIOL 202 MIDTERM PRACTICE EXAM NEW WRITTEN QUESTIONS AND ANSWERS CONCORDIA UNIVERSITY
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BIOL 202 MIDTERM PRACTICE EXAM NEW WRITTEN QUESTIONS AND ANSWERS CONCORDIA UNIVERSITY
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BIOL 202 MIDTERM PRACTICE EXAM NEW WRITTENQUESTIONS AND ANSWERS CONCORDIA UNIVERSITY
1. Which of the following is the BEST description of a control group in an
experiment?
a. The control group is a test group which is chosen at random.
b. There should be more than one control group in any experiment.
c. The control group is identical to each test group except for one variable.
d. The control group and the test groups may have several differences between them.
2. Which of the following describes a hypothesis-testing study?
a. Sandy's friend rarely catches a cold. So Sandy asked her if she does anything specialto
prevent catching a cold.
b. In order to investigate the cause of food poisoning, the doctor asked his patients whatthey
have eaten in the last 48 hours.
c. Researchers compared smoking habits of lung cancer patients and healthy
individuals.
d. In order to investigate the effectiveness of Vitamin C in alleviating common cold, half of the
participants were given Vitamin C pills and the other half were given placebo pills.All
participants were exposed to the same cold-causing virus.
3. Which of the following is an important feature of the scientific method?
a. Once demonstrated, conclusions cannot be changed.
b. If research results are not conclusive, the opinion of experts should be relied upon. c.A good
hypothesis does not necessarily need to be tested.
d. Anyone should be able to repeat an experiment.
4. Which of the following statements is describing a randomized double-blindstudy?
a. Individuals are assigned to either the experimental or control group regardless of their
previous knowledge or experience. Neither the observer nor the subject knows the subject is in
the control group or the experimental group.
b. Individuals are assigned to either the experimental or control group depending on their
previous knowledge. Neither the observer nor the subject knows the subject is inthe control
group or the experimental group.
c. Individuals are assigned to either the experimental or control group regardless of their
previous knowledge or experience. Neither the experimenter nor the observer knows the
subject is in the control group or the experimental group.
d. Individuals are assigned to either the experimental or control group depending on their
previous knowledge. Neither the experimenter nor the observer knows the subjectis in the
control group or the experimental group.
, 5. Which of the following questions would be LEAST helped by application ofthe
scientific method?
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