Biology: The Dynamics of Life, California Edition

Chapter 15: The Theory of Evolution

The Theory of Evolution

1.
Natural processes such as speciation and gradualism provide the genetic basis for _____.
A)sexual reproduction
B)biogenesis
C)evolution
D)spontaneous generation
2.
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What type of adaptation is shown in Figure 15-4?
A)camouflage
B)mimicry
C)homologous structure
D)artificial selection
3.
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Which type of natural selection shown in Figure 15-6 favors average individuals?
A)A
B)C
C)D
D)B
4.
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Which type of natural selection shown in Figure 15-6 would favor giraffes that need to reach the tallest branches to eat?
A)B
B)D
C)A
D)C
5.
Natural selection can best be defined as the _____.
A)survival of the biggest and strongest organisms in a population
B)elimination of the smallest organisms by the biggest organisms
C)survival and reproduction of the organisms that are genetically best adapted to the environment
D)survival and reproduction of the organisms that occupy the largest area
6.
Which of the following lines of evidence for evolution is indirect?
A)pesticide resistance
B)observed allele frequency changes
C)fossils
D)all of these
7.
Which of the following is not a factor that causes changes in the allelic frequencies of individuals in a population?
A)directional selection
B)disruptive selection
C)stabilizing selection
D)random selection
8.
What is the movement of genes into and out of a gene pool called?
A)random mating
B)gene flow
C)nonrandom mating
D)direct evolution
9.
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Why might the beak of the Akialoa, pictured in Figure 15-7, developed this way?
A)to dig through tree bark for insects
B)to crack open seeds
C)to scoop up fish
D)to reach nectar in flowers
10.
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The structures shown in Figure 15-5 are _____.
A)heterologous
B)analogous
C)homologous
D)vestigial
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