,Biological Science, Canadian Edition., 2e r r r r
r(Freeman et al.) Chapter 1 Biology and the r r r r r r
rTree of Life r r
1) The pattern component of the cell theory claims that all organisms consist of cells.
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A) true
B) false
rAnswer
:
A
Reference: Section 1.1 r r
rBloom's Level: r
Remembering
LOs: Chp1-2. Describe the two components of the cell theory. r r r r r r r r
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
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r observation; hypotheses treatmore specific observations. r r r r
C) A hypothesis is an explanation for a very general phenomenon; theories treat
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r more specificissues.
r
D) Theories define scientific laws; hypotheses are used to set r r r r r r r r
rup experiments.Answer: B
r r
Reference: Section 1.1 r
Bloom's Level: Comprehension r
LOs: Chp1-2. Describe the two components of the cell theory. r r r r r r r r
3) Algae in the genus Caulerpa typically grow to a length of over half a meter and
r r r r r r r r r r r r r r r
rhave structures similar to stems, leaves, and roots. Reproduction occurs when adults
r r r r r r r r r r r
rproduce sperm and eggs that fuse to form offspring. Each adult Caulerpa, however,
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rconsists of just a 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
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rof cells. r
B) Caulerpa violate the process component of the cell theory—that all cells
r r r r r r r r r r
r come frompreexisting cells.
r r
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
r r r r r r r
rcell theory.Answer: D
r r
Reference: Section 1.1 r
Bloom's Level: Comprehension r
LOs: Chp1-2. Describe the two components of the cell theory. r r r r r r r r
4) Which statement about spontaneous generation is FALSE?
r r r r r r
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
rReference: Section
r
r1.1
Bloom's Level: Remembering
r r
LOs: Chp1-2. Describe the two components of the cell theory.
r r r r r r r r
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