1)
Darwin's original theory did NOT include an explanation
fo11
A1 origin of life.
) origin of new features in major groups of life.
C)
origin of variation in species.
,.
~
why variation continues to exist within species.
(_11
ALL
OF
THE
ABOVE
2)
Most evolutionary biologists believe
that--
= =
=-
-has been the most important mechanism for the
formation of new animal species.
A)
polyploidy
B)
cladistic speciation
sympatric speciation
allopatric speciation
E)
allometric speciation
olypl01ay is a process that involves
A) two different species.
) geographic isolation.
C)
habitat isolation.
D)
natural selection.
E)
asexual reproduction.
4)
Which of the followmg statements is consistent with
up-to-date
views of evolution (the Modern Synthesis)?
A)
Evolution will favor the best genotypes in every situation.
B)
Evolution produces the best perfected structures
for
the task.
Adaptations will be limited by the amount of variation that is present in the population.
D)
Only the adaptive alleles are passed down to the next generation.
E)
ALL
OF
THE
ABOVE.
5)
For two organisms to
be
part of the same-population, they must
A)
look the same.
B)
be from two different species.
C)
live within an area that represents
10
% of the total distribution.
D)
evolve in the same manner.
have the possibility of naturally breeding
with
one another.
6}
Darwin called his mechanism for explaining the origin
otne
species
A)
Lamarckism.
B)
evolution. C natural selection.
D)
adaptation.
7)
Two structures that share a common origin from a common ancestor, even though they may be used for
different functions, are called
A)
transitional.
B)
endemic.
C)
vestigial.
homologous.
E)
analogous.
Copyright 2012 Texas A&M University. Unauthorized reproduction is strictly prohibited. C-1
