14_Clicker_Questions

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Chapter 14
How Biological Diversity Evolves
Clicker Questions for use with Classroom Response Systems
Campbell Essential Biology, Fourth Edition
– Simon, Reece, and Dickey
Campbell Essential Biology with Physiology, Third Edition
– Simon, Reece, and Dickey
Questions prepared by Brad Williamson, updated by Mike Tveten
© 2010 Pearson Education, Inc.
Concept Check
Which of the following defines
a species?
a. a population of organisms that
can breed together and produce
fertile offspring
b. organisms that share observable and measurable
phenotypic traits
c. organisms that share a common and unique genetic history
d. organisms that share common and unique adaptations to fit
specific roles in an ecological community
e. all of the above define a species, depending on the specific
question
© 2010 Pearson Education, Inc.
Concept Check
These two meadowlarks are two
separate species, the eastern
(Sturnella magna) and the western
(Sturnella neglecta). Although they
look very similar and have similar
habitats, they are considered
different species because
a. the two do not normally interbreed.
b. their ranges do not overlap.
c. they have different songs.
d. they do not share the same habitat.
© 2010 Pearson Education, Inc.
Concept Check
There are several other species
pairs like these meadowlarks in the
Great Plains (orioles, chickadees,
yellow-rumped warblers, and
flickers). Some are considered
separate species and others
aren’t, even though they are quite
different in physical appearance. Which of the following
might have geologically isolated these different bird
populations, leading to speciation?
a. the Mississippi River
b. recent (geologically) continental glaciation
c. prairie fires in the spring
d. hurricanes from the Gulf of Mexico
© 2010 Pearson Education, Inc.
Concept Check
The timeline at the bottom of the screen represents the
history of life on Earth. Which of the marked periods
represents the beginning of photosynthesis and the
accumulation of oxygen in the atmosphere?
a. A
b. B
c. C
d. D
A.
Earliest
evidence of
life
© 2010 Pearson Education, Inc.
B.
C.
D.
Present
Concept Check
The timeline at the bottom of the screen represents the
history of life on Earth. Which of the marked periods
represents the oldest fossil eukaryotes?
a. A
b. B
c. C
d. D
A.
Earliest
evidence of
life
© 2010 Pearson Education, Inc.
B.
C.
D.
Present
Concept Check
The timeline at the bottom of the screen represents the
history of life on Earth. Which of the marked periods
represents the Cambrian explosion?
a. A
b. B
c. C
d. D
A.
Earliest
evidence of
life
© 2010 Pearson Education, Inc.
B.
C.
D.
Present
Concept Check
The timeline at the bottom of the screen represents the
history of life on Earth. Which of the marked periods
represents the extinction of the dinosaurs?
a. A
b. B
c. C
d. D
A.
Earliest
evidence of
life
© 2010 Pearson Education, Inc.
B.
C.
D.
Present
Concept Check
This cladogram represents an
imaginary group of organisms—A,
B, C, D, and E. A common
ancestor for species C and E
would be at which position
number?
a. 1
b. 2
c. 3
d. 4
© 2010 Pearson Education, Inc.
2.
4.
1.
3.
Concept Check
This cladogram represents an
imaginary group of
organisms—A, B, C, D, and
E. Which two living species
are the most closely related?
a. A and B
b. B and C
c. C and D
present
2.
d. A and D
4.
1.
time
3.
relatedness
© 2010 Pearson Education, Inc.
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