Biological Science, 4e (Freeman)
Chapter 1 Biology and the Tree of Life
1) Which of the following statements about cells is true? A cell is _____.
A)
... [Show More] only found in multiples of two, because single cells cannot exist independently
B) always between 200 and 500 micrometers in diameter
C) characteristic of eukaryotic but not prokaryotic organisms
D) characteristic of both prokaryotic and eukaryotic organisms
Answer: D
Reference: Section 1.4
Bloom's Taxonomy: Level 1 Knowledge
2) How does a scientific theory differ from a scientific hypothesis?
A) Theories are proposed to test scientific hypotheses.
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 1.5
Bloom's Taxonomy: Level 2 Comprehension
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 consists of just a single cell, however.
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 1.5
Bloom's Taxonomy: Level 3 Application
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.
Answer: C
Reference: Section 1.5
Bloom's Taxonomy: Level 2 Comprehension3
5) Recall Pasteur's experiment on spontaneous generation. If he had just warmed the nutrientrich broth, rather than boiled it, what would have been the likely outcome of his experiment?
A) Cells would not have appeared in either flask.
B) Cells would have appeared in both flasks.
C) Cells would have appeared in the swan-neck, but not the straight-neck flask.
D) Cells would have appeared in the straight-neck, but not the swan-neck flask.
Answer: B
Reference: Section 1.2
Bloom's Taxonomy: Level 4 Analysis [Show Less]