BIOL 202 MIDTERM REVIEW QUESTIONS
WITH CORRECT ANSWERS 2025-2026
1. Biology is:
A) the study of living things.
B) always used responsibly in advertising claims.
C) a separate branch of science that studies how organisms interact with each other and
with their environment.
D) mostly a collection of facts that can be ordered and memorized.
E) the means by which we can answer questions such as "Does God exist?" CORRECT ANSWER
A) the study of living things.
2. Scientific thinking relies on which of the following?
A) accepting the statements of others as true
B) intuition
C) memorizing facts
D) skepticism
E) applying your preconceptions CORRECT ANSWER E) applying your preconceptions
3. After one conducts a critical experiment, what is the next step in the scientific process?
A) Make observations.
B) Formulate a hypothesis.
C) Draw conclusions, and make revisions.
D) Devise a testable prediction.
E) Formulate a null hypothesis. CORRECT ANSWER
4. Scientific data:
A) can be generalized to a much larger population.
B) are used to support or refute a hypothesis.
C) cannot be collected in a completely unbiased way.
,D) are always true.
E) must be collected in laboratories. CORRECT ANSWER B) are used to support or refute a
hypothesis.
5. In a well-designed experiment:
A) the prediction will most likely be true.
B) you can prove your hypothesis to be true.
C) the prediction will be highly probable if the explanation is correct.
D) the null hypothesis will not be tested.
E) only the researchers will know who is receiving a placebo. CORRECT ANSWER
C) the prediction will be highly probable if the explanation is correct.
6. A useful scientific hypothesis is one that is:
A) proven.
B) testable.
C) conclusive.
D) accurate.
E) abstract. -RCORRECT ANSWER -B) testable.
7. You are given a pill in a scientific trial that looks identical to a pill containing an active
ingredient, but your pill does not contain an active ingredient. The pill you were given is
called a(n):
A) treatment.
B) aspirin.
C) tablet.
D) narcotic.
E) placebo. CORRECT ANSWER E) placebo.
8. You conduct a study to determine how the amount of time spent studying affects
students' performance on exams, and you want display the data you have collected using
, a line graph. What is the dependent variable, and on which axis should it be represented
in your graph?
A) The dependent variable is "time spent studying," and it should be represented on the
x-axis.
B) The dependent variable is "time spent studying," and it should be represented on the yaxis.
C) The dependent variable is "performance on exams," and it should be represented on
the x-axis.
D) The dependent variable is "performance on exams," and it should be represented on
the y-axis.
E) The dependent variable is "time spent studying," and it can be represented on either
the x- or y-axis. CORRECT ANSWER
D) The dependent variable is "performance on exams," and it should be represented on
the y-axis.
9. Which statement cannot be evaluated by the scientific method?
A) Cows are color-blind.
B) Plants get energy from the sun.
C) Trees emit psychic screams when you cut them down.
D) Bees cannot fly in cold temperatures.
E) Conjoined twins cannot be separated without one of them dying. CORRECT ANSWER
C) Trees emit psychic screams when you cut them down
10. An atom of iron has the atomic number 26. This means that it has:
A) 52 protons.
B) 26 protons.
C) 13 neutrons.
D) an atomic mass of 26.
E) 13 electrons. CORRECT ANSWER B) 26 protons
WITH CORRECT ANSWERS 2025-2026
1. Biology is:
A) the study of living things.
B) always used responsibly in advertising claims.
C) a separate branch of science that studies how organisms interact with each other and
with their environment.
D) mostly a collection of facts that can be ordered and memorized.
E) the means by which we can answer questions such as "Does God exist?" CORRECT ANSWER
A) the study of living things.
2. Scientific thinking relies on which of the following?
A) accepting the statements of others as true
B) intuition
C) memorizing facts
D) skepticism
E) applying your preconceptions CORRECT ANSWER E) applying your preconceptions
3. After one conducts a critical experiment, what is the next step in the scientific process?
A) Make observations.
B) Formulate a hypothesis.
C) Draw conclusions, and make revisions.
D) Devise a testable prediction.
E) Formulate a null hypothesis. CORRECT ANSWER
4. Scientific data:
A) can be generalized to a much larger population.
B) are used to support or refute a hypothesis.
C) cannot be collected in a completely unbiased way.
,D) are always true.
E) must be collected in laboratories. CORRECT ANSWER B) are used to support or refute a
hypothesis.
5. In a well-designed experiment:
A) the prediction will most likely be true.
B) you can prove your hypothesis to be true.
C) the prediction will be highly probable if the explanation is correct.
D) the null hypothesis will not be tested.
E) only the researchers will know who is receiving a placebo. CORRECT ANSWER
C) the prediction will be highly probable if the explanation is correct.
6. A useful scientific hypothesis is one that is:
A) proven.
B) testable.
C) conclusive.
D) accurate.
E) abstract. -RCORRECT ANSWER -B) testable.
7. You are given a pill in a scientific trial that looks identical to a pill containing an active
ingredient, but your pill does not contain an active ingredient. The pill you were given is
called a(n):
A) treatment.
B) aspirin.
C) tablet.
D) narcotic.
E) placebo. CORRECT ANSWER E) placebo.
8. You conduct a study to determine how the amount of time spent studying affects
students' performance on exams, and you want display the data you have collected using
, a line graph. What is the dependent variable, and on which axis should it be represented
in your graph?
A) The dependent variable is "time spent studying," and it should be represented on the
x-axis.
B) The dependent variable is "time spent studying," and it should be represented on the yaxis.
C) The dependent variable is "performance on exams," and it should be represented on
the x-axis.
D) The dependent variable is "performance on exams," and it should be represented on
the y-axis.
E) The dependent variable is "time spent studying," and it can be represented on either
the x- or y-axis. CORRECT ANSWER
D) The dependent variable is "performance on exams," and it should be represented on
the y-axis.
9. Which statement cannot be evaluated by the scientific method?
A) Cows are color-blind.
B) Plants get energy from the sun.
C) Trees emit psychic screams when you cut them down.
D) Bees cannot fly in cold temperatures.
E) Conjoined twins cannot be separated without one of them dying. CORRECT ANSWER
C) Trees emit psychic screams when you cut them down
10. An atom of iron has the atomic number 26. This means that it has:
A) 52 protons.
B) 26 protons.
C) 13 neutrons.
D) an atomic mass of 26.
E) 13 electrons. CORRECT ANSWER B) 26 protons
