Evolution - Final Exam Review ACTUAL
UPDATED QUESTIONS AND CORRECT
ANSWERS
Early classification systems from Aristotle to Linneaus would have been most like what we
now call ________.
a) the morphospecies concept
b) the phylogenetic species concept
c) the biological species concept
d) the ecological species concept - CORRECT ANSWERS✅✅A
The species concept that relies most heavily on the criterion that species are evolutionarily
independent units that are isolated by gene flow is ________.
a) the morphospecies concept
b) the phylogenetic species concept
c) the biological species concept
d) This criterion is common to all of these concepts. - CORRECT ANSWERS✅✅D
Organisms such as prokaryotes (bacteria and archaea)―along with some
eukaryotes―reproduce asexually. In the case of bacteria and archaea in particular, which
exchange DNA but do not reproduce utilizing conventional sexual reproduction, the BEST
way in which to define species is with ________.
a) the morphospecies concept
b) the phylogenetic species concept
c) the biological species concept
d) an ecological species concept - CORRECT ANSWERS✅✅D
There are two closely related populations of squirrels living in the Grand Canyon area―one
lives on the north rim, the other lives on the south rim. Speciation in these squirrels BEST fits
which model?
a) dispersive allopatric speciation
b) dispersive sympatric speciation
, c) vicariant allopatric speciation
d) vicariant sympatric speciation - CORRECT ANSWERS✅✅C
Your textbook authors make the claim that "sympatric species with matching chromosome
numbers are rare." Why is this?
a) because allopatric speciation is far more common
b) because sympatric speciation has only been hypothesized but not documented
c) because coexisting populations need a boundary to gene flow before divergence can
occur, and differences in chromosome numbers provide this
d) because macroevolution is just a theory - CORRECT ANSWERS✅✅C
Isolating mechanisms leading to speciation have been documented by ________.
a) geographic isolation
b) polyploidy
c) temporal isolation
d) a mutation in a single gene
e) All of the above. - CORRECT ANSWERS✅✅E
It now seems clear that the strongest factor in speciation events is ________.
a) genetic drift
b) sexual selection
c) natural selection
d) the bottleneck effect - CORRECT ANSWERS✅✅C
Research on speciation of Hawaiian crickets, shown in the accompanying figure, has led
researchers to conclude that ________.
a) these cricket species have diverged by a mechanism known as assortative mating
b) females of different species have strong preferences for the singing pulse rate of the males
of their own species
c) female preference for male singing pulse rate is genetically linked to the combination of
genes regulating the singing pulse rate of males
d) All of the above are accurate. - CORRECT ANSWERS✅✅D
UPDATED QUESTIONS AND CORRECT
ANSWERS
Early classification systems from Aristotle to Linneaus would have been most like what we
now call ________.
a) the morphospecies concept
b) the phylogenetic species concept
c) the biological species concept
d) the ecological species concept - CORRECT ANSWERS✅✅A
The species concept that relies most heavily on the criterion that species are evolutionarily
independent units that are isolated by gene flow is ________.
a) the morphospecies concept
b) the phylogenetic species concept
c) the biological species concept
d) This criterion is common to all of these concepts. - CORRECT ANSWERS✅✅D
Organisms such as prokaryotes (bacteria and archaea)―along with some
eukaryotes―reproduce asexually. In the case of bacteria and archaea in particular, which
exchange DNA but do not reproduce utilizing conventional sexual reproduction, the BEST
way in which to define species is with ________.
a) the morphospecies concept
b) the phylogenetic species concept
c) the biological species concept
d) an ecological species concept - CORRECT ANSWERS✅✅D
There are two closely related populations of squirrels living in the Grand Canyon area―one
lives on the north rim, the other lives on the south rim. Speciation in these squirrels BEST fits
which model?
a) dispersive allopatric speciation
b) dispersive sympatric speciation
, c) vicariant allopatric speciation
d) vicariant sympatric speciation - CORRECT ANSWERS✅✅C
Your textbook authors make the claim that "sympatric species with matching chromosome
numbers are rare." Why is this?
a) because allopatric speciation is far more common
b) because sympatric speciation has only been hypothesized but not documented
c) because coexisting populations need a boundary to gene flow before divergence can
occur, and differences in chromosome numbers provide this
d) because macroevolution is just a theory - CORRECT ANSWERS✅✅C
Isolating mechanisms leading to speciation have been documented by ________.
a) geographic isolation
b) polyploidy
c) temporal isolation
d) a mutation in a single gene
e) All of the above. - CORRECT ANSWERS✅✅E
It now seems clear that the strongest factor in speciation events is ________.
a) genetic drift
b) sexual selection
c) natural selection
d) the bottleneck effect - CORRECT ANSWERS✅✅C
Research on speciation of Hawaiian crickets, shown in the accompanying figure, has led
researchers to conclude that ________.
a) these cricket species have diverged by a mechanism known as assortative mating
b) females of different species have strong preferences for the singing pulse rate of the males
of their own species
c) female preference for male singing pulse rate is genetically linked to the combination of
genes regulating the singing pulse rate of males
d) All of the above are accurate. - CORRECT ANSWERS✅✅D
