Biological Science, Canadian Edition., 2e (Freeman et al.) Chapter
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n 1 Biology and the Tree of Life
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1) The pattern component of the cell theory claims that all organisms consist of cells.
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A) true
B) false
Answer: A
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Reference: Section 1.1 n n
Bloom's Level: Remembering
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LOs: Chp1-2. Describe the two components of the cell theory.
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2) How does a scientific theory differ from a scientific hypothesis?
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A) There is no difference—the terms are interchangeable.
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B) A theory is an explanation for a very general phenomenon or observation; hypotheses
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treat more specific observations.
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C) A hypothesis is an explanation for a very general phenomenon; theories treat more
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specific issues.
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D) Theories define scientific laws; hypotheses are used to set up
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experiments. Answer: B
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Reference: Section 1.1 n n
Bloom's Level: Comprehension n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
3) Algae in the genus Caulerpa typically grow to a length of over half a meter and have
n n n n n n n n n n n n n n n n
structures similar to stems, leaves, and roots. Reproduction occurs when adults produce
n n n n n n n n n n n n
sperm and eggs that fuse to form offspring. Each adult Caulerpa, however, consists of just a
n n n n n n n n n n n n n n n n
single cell. Which of the following statements is true?
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A) Caulerpa violate the pattern component of the cell theory—that all organisms consist of cells.
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B) Caulerpa violate the process component of the cell theory—that all cells come
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from preexisting cells.
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C) Caulerpa violate both the pattern and process components of the cell theory.
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D) The existence of Caulerpa is consistent with the cell theory.
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,Answer: D
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Reference: Section 1.1
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Bloom's Level: Comprehension
n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
4) Which statement about spontaneous generation is FALSE?
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A) Pasteur demonstrated that it does not occur under normal laboratory conditions.
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B) It apparently occurred at least once–when life on Earth began.
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C) It occurs every time a new species evolves from a preexisting species.
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D) It addresses the formation of living cells from previously nonliving material.
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Answer: C
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Reference: Section 1.1
n n
Bloom's Level: Remembering
n n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
,5) Recall Pasteur's experiment on spontaneous generation. Originally, he used sealed and
n n n n n n n n n n
unsealed flasks instead of swan-necked and unsealed flasks. Critics claimed that the
n n n n n n n n n n n n
experiment was inconclusive. Which of the following criticisms would be addressed by using a
n n n n n n n n n n n n n n
swan-necked flask instead of the sealed flask?
n n n n n n n
A) The broth was heated too intensively.
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B) There had not been enough time for spontaneous generation to occur.
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C) Fresh air is required for spontaneous generation.
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D) The broth was not nutritious
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enough. Answer: C
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Reference: Section 1.1 n n
Bloom's Level: Comprehension/Applying
n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
6) Which of the following is the best example of a heritable variation?
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A) skin cancer
n
B) amputation
C) red hair
n
D) love for music
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Answer: C
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Reference: Section 1.2 n n
Bloom's Level: Comprehension
n n
LOs: Chp1-1. Name five fundamental characteristics shared by all living organisms.
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7) How does artificial selection differ from natural selection?
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A) Artificial selection occurs only in computer simulations, not with actual organisms.
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B) Artificial selection is based on conscious choices by humans.
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C) Artificial selection occurs only with plants.
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D) Artificial selection is not based on heritable variation, but on new
n n n n n n n n n n
mutations. Answer: B
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Reference: Section 1.2 n n
Bloom's Level: Comprehension
n n
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
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, are necessary and sufficient for natural selection to bring about evolutionary change in a
n n n n n n n n n n n n n n
population.
n
n n n n n n n n
n 1 Biology and the Tree of Life
n n n n n n
1) The pattern component of the cell theory claims that all organisms consist of cells.
n n n n n n n n n n n n n
A) true
B) false
Answer: A
n n
Reference: Section 1.1 n n
Bloom's Level: Remembering
n n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
2) How does a scientific theory differ from a scientific hypothesis?
n n n n n n n n n
A) There is no difference—the terms are interchangeable.
n n n n n n
B) A theory is an explanation for a very general phenomenon or observation; hypotheses
n n n n n n n n n n n n
treat more specific observations.
n n n n
C) A hypothesis is an explanation for a very general phenomenon; theories treat more
n n n n n n n n n n n n
specific issues.
n n
D) Theories define scientific laws; hypotheses are used to set up
n n n n n n n n n
experiments. Answer: B
n n n
Reference: Section 1.1 n n
Bloom's Level: Comprehension n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
3) Algae in the genus Caulerpa typically grow to a length of over half a meter and have
n n n n n n n n n n n n n n n n
structures similar to stems, leaves, and roots. Reproduction occurs when adults produce
n n n n n n n n n n n n
sperm and eggs that fuse to form offspring. Each adult Caulerpa, however, consists of just a
n n n n n n n n n n n n n n n n
single cell. Which of the following statements is true?
n n n n n n n n n
A) Caulerpa violate the pattern component of the cell theory—that all organisms consist of cells.
n n n n n n n n n n n n n
B) Caulerpa violate the process component of the cell theory—that all cells come
n n n n n n n n n n n
from preexisting cells.
n n n
C) Caulerpa violate both the pattern and process components of the cell theory.
n n n n n n n n n n n
D) The existence of Caulerpa is consistent with the cell theory.
n n n n n n n n n
,Answer: D
n n
Reference: Section 1.1
n n
Bloom's Level: Comprehension
n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
4) Which statement about spontaneous generation is FALSE?
n n n n n n
A) Pasteur demonstrated that it does not occur under normal laboratory conditions.
n n n n n n n n n n
B) It apparently occurred at least once–when life on Earth began.
n n n n n n n n n
C) It occurs every time a new species evolves from a preexisting species.
n n n n n n n n n n n
D) It addresses the formation of living cells from previously nonliving material.
n n n n n n n n n n
Answer: C
n n
Reference: Section 1.1
n n
Bloom's Level: Remembering
n n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
,5) Recall Pasteur's experiment on spontaneous generation. Originally, he used sealed and
n n n n n n n n n n
unsealed flasks instead of swan-necked and unsealed flasks. Critics claimed that the
n n n n n n n n n n n n
experiment was inconclusive. Which of the following criticisms would be addressed by using a
n n n n n n n n n n n n n n
swan-necked flask instead of the sealed flask?
n n n n n n n
A) The broth was heated too intensively.
n n n n n
B) There had not been enough time for spontaneous generation to occur.
n n n n n n n n n n
C) Fresh air is required for spontaneous generation.
n n n n n n
D) The broth was not nutritious
n n n n
enough. Answer: C
n n n
Reference: Section 1.1 n n
Bloom's Level: Comprehension/Applying
n n
LOs: Chp1-2. Describe the two components of the cell theory.
n n n n n n n n n
6) Which of the following is the best example of a heritable variation?
n n n n n n n n n n n
A) skin cancer
n
B) amputation
C) red hair
n
D) love for music
n n
Answer: C
n n
Reference: Section 1.2 n n
Bloom's Level: Comprehension
n n
LOs: Chp1-1. Name five fundamental characteristics shared by all living organisms.
n n n n n n n n n n
7) How does artificial selection differ from natural selection?
n n n n n n n
A) Artificial selection occurs only in computer simulations, not with actual organisms.
n n n n n n n n n n
B) Artificial selection is based on conscious choices by humans.
n n n n n n n n
C) Artificial selection occurs only with plants.
n n n n n
D) Artificial selection is not based on heritable variation, but on new
n n n n n n n n n n
mutations. Answer: B
n n n
Reference: Section 1.2 n n
Bloom's Level: Comprehension
n n
LOs: Chp1-3. Briefly explain the theory of natural selection, and clarify the two conditions that
n n n n n n n n n n n n n n
, are necessary and sufficient for natural selection to bring about evolutionary change in a
n n n n n n n n n n n n n n
population.
n
