Chapter 15:
The Theory of Evolution
Practice Test
1.
Evolution occurs in __________.
a.
individuals
b.
every cell
c.
populations
d.
communities
Hint
2.
Body structures that have reduced functionality are __________.
a.
vestigial
b.
homologous
c.
analogous
d.
fossil
Hint
3.
If formerly interbreeding organisms are prevented from the production of fertile offspring, __________ has occurred.
a.
physiologic isolation
b.
behavioral isolation
c.
reproductive isolation
d.
geographic isolation
Hint
4.
The idea that evolution occurs in rapid bursts followed by long periods of stability is known as __________.
a.
adaptive radiation
b.
adaptation
c.
gradualism
d.
punctuated equilibrium
Hint
5.
Hidden phylogenic relationships may be determined by __________.
a.
fossils
b.
behavior
c.
body structure
d.
DNA studies
Hint
6.
The alteration of genetic frequencies by chance events is __________.
a.
an effect of immigration
b.
genetic equilibrium
c.
allelic frequency
d.
genetic drift
Hint
7.
Development of bacterial resistance is an example of __________.
a.
mimicry
b.
camouflage
c.
structural adaptation
d.
physiological adaptation
Hint
8.
A modified structure that has a common ancestry, but different functions, is called a(n) __________ structure.
a.
homologous
b.
analogous
c.
fossil
d.
vestigial
Hint
9.
Natural selection cannot occur if populations do not have ________.
a.
direction
b.
immigration
c.
emigration
d.
variation
Hint
10.
The entire collection of genes in a population is a(n) __________.
a.
gene pool
b.
frequency of alleles
c.
evolutionary direction
d.
genetic equilibrium
Hint
11.
Structures that have the same function, but appear to have different ancestries, are called __________.
a.
vestigials
b.
analogous
c.
homologous
d.
fossils
Hint
12.
The type of natural selection that favors the average individual in a population is __________.
a.
stabilizing selection
b.
directional selection
c.
speciation
d.
disruptive selection
Hint
13.
__________ is a structural adaptation that enables an organism to blend in with its surroundings.
a.
A homologous structure
b.
Mimicry
c.
Camouflage
d.
Avoidance
Hint
14.
The type of natural selection that favors both extremes of a trait in a population is __________.
a.
disruptive selection
b.
stabilizing selection
c.
directional selection
d.
speciation
Hint
15.
A physical barrier that separates a population causes __________.
a.
physiologic isolation
b.
behavioral isolation
c.
geographic isolation
d.
emigration
Hint
