BIOL 204
BIOL 204 Final Exam Questions and Answers 2026
1
quantitative
Numbers are needed in order to obtain __________ data
2
B
Here is a false statement: A 19-year-old W&M student travels to Belize on a study
abroad program and finds that her skin darkens due to production of the pigment
melanin. The student has evolved.
Which of the following statements correctly revises the incorrect statement?
A. The student had the capacity to produce melanin and has acclimated in response to
the new environmental conditions. The student's genotype changed.
B. The student had the capacity to produce melanin and has acclimated in response to
the new environmental conditions. The student's genotype did not change.
C. The student underwent adaptation and now has the capacity to produce melanin in
response to the new environmental conditions. The student's genotype changed.
D. The student's skin cells underwent natural selection and only the ones with more
melanin were able to persist.
E. The student underwent adaptation and now has the capacity to produce melanin in
response to the new environmental conditions. The student's genotype did not
change.
3
reject the null hypothesis
If F is bigger than F critical, we can
4
18.08
MSbetween=28.03
MSwithin=1.55
calculate F
5
allele frequency, population
evolution is a change in _________ in a _______ over time
6
BIOL 204
, BIOL 204
C
Which of the following does NOT describe one of Darwin's postulates for evolution by
natural selection?
A. Within a population of anole lizards, there are variable rates of survival and
reproduction.
B. In some environments, anole lizards with long tail lengths have higher survival and
reproduction than lizards with short tails.
C. The evolution of long tails has improved anole lizards.
D. Tail length is a heritable trait.
E. Tail length of anole lizards is variable within a population.
7
C
Mummichog fish are observed to avoid noisy areas. Which of the following is an
ultimate explanation for this behavior?
A. Because the detection of vibrations interferes with navigational processes.
B. Because noise interferes with their lateral lines' ability to detect the vibrations of
predators and prey.
C. Because noisy areas are associated with an elevated predation risk.
D. Because noise elevates stress hormones that lower concentration of a sex
hormone.
E. Because the detection of vibrations by nerve cells is experienced as pain.
8
does not
Learning has the most influence on behavior when making mistakes ________ result in
death. (does/ does not)
9
II and V
You ran a single factor ANOVA on an experiment that compared efficacy of a new drug
against a placebo, and your p-value is < 0.05. What does this mean?
I. You have proven that the drug and the placebo's effects are different.
II. Your F-statistic was larger than the critical F value.
III. Your F-statistic was smaller than the critical F value.
IV. Your prediction on how your new drug works was accurate.
V. You can reject the null hypothesis that the drug and the placebo's effects are not
different.
10
BIOL 204
BIOL 204 Final Exam Questions and Answers 2026
1
quantitative
Numbers are needed in order to obtain __________ data
2
B
Here is a false statement: A 19-year-old W&M student travels to Belize on a study
abroad program and finds that her skin darkens due to production of the pigment
melanin. The student has evolved.
Which of the following statements correctly revises the incorrect statement?
A. The student had the capacity to produce melanin and has acclimated in response to
the new environmental conditions. The student's genotype changed.
B. The student had the capacity to produce melanin and has acclimated in response to
the new environmental conditions. The student's genotype did not change.
C. The student underwent adaptation and now has the capacity to produce melanin in
response to the new environmental conditions. The student's genotype changed.
D. The student's skin cells underwent natural selection and only the ones with more
melanin were able to persist.
E. The student underwent adaptation and now has the capacity to produce melanin in
response to the new environmental conditions. The student's genotype did not
change.
3
reject the null hypothesis
If F is bigger than F critical, we can
4
18.08
MSbetween=28.03
MSwithin=1.55
calculate F
5
allele frequency, population
evolution is a change in _________ in a _______ over time
6
BIOL 204
, BIOL 204
C
Which of the following does NOT describe one of Darwin's postulates for evolution by
natural selection?
A. Within a population of anole lizards, there are variable rates of survival and
reproduction.
B. In some environments, anole lizards with long tail lengths have higher survival and
reproduction than lizards with short tails.
C. The evolution of long tails has improved anole lizards.
D. Tail length is a heritable trait.
E. Tail length of anole lizards is variable within a population.
7
C
Mummichog fish are observed to avoid noisy areas. Which of the following is an
ultimate explanation for this behavior?
A. Because the detection of vibrations interferes with navigational processes.
B. Because noise interferes with their lateral lines' ability to detect the vibrations of
predators and prey.
C. Because noisy areas are associated with an elevated predation risk.
D. Because noise elevates stress hormones that lower concentration of a sex
hormone.
E. Because the detection of vibrations by nerve cells is experienced as pain.
8
does not
Learning has the most influence on behavior when making mistakes ________ result in
death. (does/ does not)
9
II and V
You ran a single factor ANOVA on an experiment that compared efficacy of a new drug
against a placebo, and your p-value is < 0.05. What does this mean?
I. You have proven that the drug and the placebo's effects are different.
II. Your F-statistic was larger than the critical F value.
III. Your F-statistic was smaller than the critical F value.
IV. Your prediction on how your new drug works was accurate.
V. You can reject the null hypothesis that the drug and the placebo's effects are not
different.
10
BIOL 204
