Quiz PCB4674 Exam Questions and
Answers Graded A+
Which of the following statements about whale evolution is true?
a. Once biologists find all the missing links, they will be able to understand whale
evolution
b. The fossil record provides evidence about the timing of certain events in whale
evolution
c. The fossil record demonstrates that the major changes involved in the shift from
land to sea happened all at once
d. DNA evidence allows scientists to understand most of the early history of whale
evolution. - Correct answer-the fossil record provides evidence about the timing of
certain events in whale evolution
Certain features of viruses enable them to evolve rapidly. Flu viruses evolve,
evading detection by host immune cells, by? - Correct answer-reassorting genes of
multiple viral strains during viral replication
Which of the following sources of data can be used to study evolution?
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, a. frequencies of traits in populations
b. morphological data from fossil organisms
c. DNA sequence data
d. all of the above - Correct answer-all of the above
Which intellectual predecessor to Darwin had to least influence on the theory of
evolution by natural selection? - Correct answer-Gregor Mendel's work on the
genetics of peas
Thomas Malthus' use of mathematical description of the changes in human
population size explained _________. - Correct answer-why all organisms face a
"struggle for existence"
Lord Kelvin argued that, based on the temperature of rocks, the earth could not be
as old as some geologists thought. What turned out to be wrong with his
reasoning? - Correct answer-he did not realize that the planet's interior was being
heated by radioactive decay, which had not been discovered yet.
The decline of grasses has occurred mostly in the last 20 million years. Some
scientists have argued that this can be explained by: - Correct answer-a decline in
the concentration of carbon dioxide in the atmosphere.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Answers Graded A+
Which of the following statements about whale evolution is true?
a. Once biologists find all the missing links, they will be able to understand whale
evolution
b. The fossil record provides evidence about the timing of certain events in whale
evolution
c. The fossil record demonstrates that the major changes involved in the shift from
land to sea happened all at once
d. DNA evidence allows scientists to understand most of the early history of whale
evolution. - Correct answer-the fossil record provides evidence about the timing of
certain events in whale evolution
Certain features of viruses enable them to evolve rapidly. Flu viruses evolve,
evading detection by host immune cells, by? - Correct answer-reassorting genes of
multiple viral strains during viral replication
Which of the following sources of data can be used to study evolution?
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, a. frequencies of traits in populations
b. morphological data from fossil organisms
c. DNA sequence data
d. all of the above - Correct answer-all of the above
Which intellectual predecessor to Darwin had to least influence on the theory of
evolution by natural selection? - Correct answer-Gregor Mendel's work on the
genetics of peas
Thomas Malthus' use of mathematical description of the changes in human
population size explained _________. - Correct answer-why all organisms face a
"struggle for existence"
Lord Kelvin argued that, based on the temperature of rocks, the earth could not be
as old as some geologists thought. What turned out to be wrong with his
reasoning? - Correct answer-he did not realize that the planet's interior was being
heated by radioactive decay, which had not been discovered yet.
The decline of grasses has occurred mostly in the last 20 million years. Some
scientists have argued that this can be explained by: - Correct answer-a decline in
the concentration of carbon dioxide in the atmosphere.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
