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Biological Science, Canadian Edition., 2e (Freeman et al.)
Chapter 1 Biology and the Tree of Life
1) The pattern component of the cell theory claims that all organisms consist of cells.
A) true
B) false
Answer: A
Reference: Section 1.1
Bloom's Level: Remembering
LOs: Chp1-2. Describe the two components of the cell theory.
2) How does a scientific theory differ from a scientific hypothesis?
A) There is no difference—the terms are interchangeable.
B) A theory is an explanation for a very general phenomenon or observation; hypotheses treat
more specific observations.
C) A hypothesis is an explanation for a very general phenomenon; theories treat more specific
issues.
D) Theories define scientific laws; hypotheses are used to set up experiments.
Answer: B
Reference: Section 1.1
Bloom's Level: Comprehension
LOs: Chp1-2. Describe the two components of the cell theory.
3) Algae in the genus Caulerpa typically grow to a length of over half a meter and have
structures similar to stems, leaves, and roots. Reproduction occurs when adults produce sperm
and eggs that fuse to form offspring. Each adult Caulerpa, however, consists of just a single cell.
Which of the following statements is true?
A) Caulerpa violate the pattern component of the cell theory—that all organisms consist of cells.
B) Caulerpa violate the process component of the cell theory—that all cells come from
preexisting cells.
C) Caulerpa violate both the pattern and process components of the cell theory.
D) The existence of Caulerpa is consistent with the cell theory.
Answer: D
Reference: Section 1.1
Bloom's Level: Comprehension
LOs: Chp1-2. Describe the two components of the cell theory.
4) Which statement about spontaneous generation is FALSE?
A) Pasteur demonstrated that it does not occur under normal laboratory conditions.
B) It apparently occurred at least once–when life on Earth began.
C) It occurs every time a new species evolves from a preexisting species.
D) It addresses the formation of living cells from previously nonliving material.
Test Bank for Biological Science 6th Edition Scott Freeman Lizabeth Allison
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Answer: C
Reference: Section 1.1
Bloom's Level: Remembering
LOs: Chp1-2. Describe the two components of the cell theory.
Test Bank for Biological Science 6th Edition Scott Freeman Lizabeth Allison
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5) Recall Pasteur's experiment on spontaneous generation. Originally, he used sealed and
unsealed flasks instead of swan-necked and unsealed flasks. Critics claimed that the experiment
was inconclusive. Which of the following criticisms would be addressed by using a swan-necked
flask instead of the sealed flask?
A) The broth was heated too intensively.
B) There had not been enough time for spontaneous generation to occur.
C) Fresh air is required for spontaneous generation.
D) The broth was not nutritious enough.
Answer: C
Reference: Section 1.1
Bloom's Level: Comprehension/Applying
LOs: Chp1-2. Describe the two components of the cell theory.
6) Which of the following is the best example of a heritable variation?
A) skin cancer
B) amputation
C) red hair
D) love for music
Answer: C
Reference: Section 1.2
Bloom's Level: Comprehension
LOs: Chp1-1. Name five fundamental characteristics shared by all living organisms.
7) How does artificial selection differ from natural selection?
A) Artificial selection occurs only in computer simulations, not with actual organisms.
B) Artificial selection is based on conscious choices by humans.
C) Artificial selection occurs only with plants.
D) Artificial selection is not based on heritable variation, but on new mutations.
Answer: B
Reference: Section 1.2
Bloom's Level: Comprehension
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
are necessary and sufficient for natural selection to bring about evolutionary change in a
population.
Test Bank for Biological Science 6th Edition Scott Freeman Lizabeth Allison
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8) Over the past several decades, natural selection has caused populations of Staphylococcus
aureus (an infectious wound bacterium) to evolve resistance to most antibiotics. If antibiotic use
were stopped, what would you predict would happen to these S. aureus populations?
A) They will go extinct without the antibiotic.
B) The populations will begin colonizing new environments.
C) The frequency of nonresistant forms will increase in these populations.
D) The frequency of resistant forms will definitely increase in these populations.
Answer: C
Reference: Section 1.2
Bloom's Level: Applying
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
are necessary and sufficient for natural selection to bring about evolutionary change in a
population.
9) Environments all over the world are changing as a result of global warming. Could this
influence natural selection?
A) No. The environment is always changing. Global warming is nothing new.
B) Yes. Traits that help individuals produce more offspring in warmer environments will
increase in frequency.
C) No. The only change will be that species from hot environments will expand their ranges.
D) Yes. Mutations occur more frequently in hot environments.
Answer: B
Reference: Section 1.2
Bloom's Level: Applying
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
are necessary and sufficient for natural selection to bring about evolutionary change in a
population.
10) The "heat" in chili peppers is due to a molecule called capsaicin. Suppose you breed chili
peppers that have low amounts of capsaicin over many generations in order to make them milder
(have less capsaicin). What process is occurring?
A) heritable variation
B) environmental change
C) natural selection
D) artificial selection
Answer: D
Reference: Section 1.2
Bloom's Level: Comprehension/Remembering
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
are necessary and sufficient for natural selection to bring about evolutionary change in a
population.
Test Bank for Biological Science 6th Edition Scott Freeman Lizabeth Allison
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freeman.docx
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Biological Science, Canadian Edition., 2e (Freeman et al.)
Chapter 1 Biology and the Tree of Life
1) The pattern component of the cell theory claims that all organisms consist of cells.
A) true
B) false
Answer: A
Reference: Section 1.1
Bloom's Level: Remembering
LOs: Chp1-2. Describe the two components of the cell theory.
2) How does a scientific theory differ from a scientific hypothesis?
A) There is no difference—the terms are interchangeable.
B) A theory is an explanation for a very general phenomenon or observation; hypotheses treat
more specific observations.
C) A hypothesis is an explanation for a very general phenomenon; theories treat more specific
issues.
D) Theories define scientific laws; hypotheses are used to set up experiments.
Answer: B
Reference: Section 1.1
Bloom's Level: Comprehension
LOs: Chp1-2. Describe the two components of the cell theory.
3) Algae in the genus Caulerpa typically grow to a length of over half a meter and have
structures similar to stems, leaves, and roots. Reproduction occurs when adults produce sperm
and eggs that fuse to form offspring. Each adult Caulerpa, however, consists of just a single cell.
Which of the following statements is true?
A) Caulerpa violate the pattern component of the cell theory—that all organisms consist of cells.
B) Caulerpa violate the process component of the cell theory—that all cells come from
preexisting cells.
C) Caulerpa violate both the pattern and process components of the cell theory.
D) The existence of Caulerpa is consistent with the cell theory.
Answer: D
Reference: Section 1.1
Bloom's Level: Comprehension
LOs: Chp1-2. Describe the two components of the cell theory.
4) Which statement about spontaneous generation is FALSE?
A) Pasteur demonstrated that it does not occur under normal laboratory conditions.
B) It apparently occurred at least once–when life on Earth began.
C) It occurs every time a new species evolves from a preexisting species.
D) It addresses the formation of living cells from previously nonliving material.
Test Bank for Biological Science 6th Edition Scott Freeman Lizabeth Allison
Test bank for biological science 7th edition freeman.docxhttps://www.stuvia.com/user/stuviaun
https://www.stuvia.com/user/stuviaun
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Answer: C
Reference: Section 1.1
Bloom's Level: Remembering
LOs: Chp1-2. Describe the two components of the cell theory.
Test Bank for Biological Science 6th Edition Scott Freeman Lizabeth Allison
Test bank for biological science 7th edition freeman.docxhttps://www.stuvia.com/user/stuviaun
https://www.stuvia.com/user/stuviaun
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5) Recall Pasteur's experiment on spontaneous generation. Originally, he used sealed and
unsealed flasks instead of swan-necked and unsealed flasks. Critics claimed that the experiment
was inconclusive. Which of the following criticisms would be addressed by using a swan-necked
flask instead of the sealed flask?
A) The broth was heated too intensively.
B) There had not been enough time for spontaneous generation to occur.
C) Fresh air is required for spontaneous generation.
D) The broth was not nutritious enough.
Answer: C
Reference: Section 1.1
Bloom's Level: Comprehension/Applying
LOs: Chp1-2. Describe the two components of the cell theory.
6) Which of the following is the best example of a heritable variation?
A) skin cancer
B) amputation
C) red hair
D) love for music
Answer: C
Reference: Section 1.2
Bloom's Level: Comprehension
LOs: Chp1-1. Name five fundamental characteristics shared by all living organisms.
7) How does artificial selection differ from natural selection?
A) Artificial selection occurs only in computer simulations, not with actual organisms.
B) Artificial selection is based on conscious choices by humans.
C) Artificial selection occurs only with plants.
D) Artificial selection is not based on heritable variation, but on new mutations.
Answer: B
Reference: Section 1.2
Bloom's Level: Comprehension
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
are necessary and sufficient for natural selection to bring about evolutionary change in a
population.
Test Bank for Biological Science 6th Edition Scott Freeman Lizabeth Allison
Test bank for biological science 7th edition freeman.docxhttps://www.stuvia.com/user/stuviaun
https://www.stuvia.com/user/stuviaun
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freeman.docx
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8) Over the past several decades, natural selection has caused populations of Staphylococcus
aureus (an infectious wound bacterium) to evolve resistance to most antibiotics. If antibiotic use
were stopped, what would you predict would happen to these S. aureus populations?
A) They will go extinct without the antibiotic.
B) The populations will begin colonizing new environments.
C) The frequency of nonresistant forms will increase in these populations.
D) The frequency of resistant forms will definitely increase in these populations.
Answer: C
Reference: Section 1.2
Bloom's Level: Applying
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
are necessary and sufficient for natural selection to bring about evolutionary change in a
population.
9) Environments all over the world are changing as a result of global warming. Could this
influence natural selection?
A) No. The environment is always changing. Global warming is nothing new.
B) Yes. Traits that help individuals produce more offspring in warmer environments will
increase in frequency.
C) No. The only change will be that species from hot environments will expand their ranges.
D) Yes. Mutations occur more frequently in hot environments.
Answer: B
Reference: Section 1.2
Bloom's Level: Applying
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
are necessary and sufficient for natural selection to bring about evolutionary change in a
population.
10) The "heat" in chili peppers is due to a molecule called capsaicin. Suppose you breed chili
peppers that have low amounts of capsaicin over many generations in order to make them milder
(have less capsaicin). What process is occurring?
A) heritable variation
B) environmental change
C) natural selection
D) artificial selection
Answer: D
Reference: Section 1.2
Bloom's Level: Comprehension/Remembering
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
are necessary and sufficient for natural selection to bring about evolutionary change in a
population.
Test Bank for Biological Science 6th Edition Scott Freeman Lizabeth Allison
Test bank for biological science 7th edition freeman.docxhttps://www.stuvia.com/user/stuviaun
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