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WorksheetsChapter 17 Evolution of Populations
Total questions: 12
Worksheet time: 27mins
Name
Class
Date
1.
Which of the three graphs might show a poulation of birds with members that specialize in different types of food?
a)
A
b)
B
c)
C
2.
Which of the three graphs shows directional selection?
a)
A
b)
B
c)
C
3.
Which of the three graphs shows stabilizing selection?
a)
A
b)
B
c)
C
4.
Group of organisms capable of interbreeding and producing fertile offspring.
a)
species
b)
gene pool
c)
population
d)
homologous structure
5.
A chance occurrence that negatively affects a population because the population is small.
a)
genetic drift
b)
mutation
c)
speciation
d)
migration
6.
A horse and a donkey can successfully mate to produce offspring known as a mule. Mules are sterile . Would mules be classified as a species?
a)
Yes, mules have enough of their own traits to be considered a species.
b)
Yes, the fact that have different number of chromosomes makes them a different species
c)
No, mules are too similar to the parent species
d)
No, due to their inability to reproduce successfully.
7.
The lava released by a volcanic eruption separates two populations of a species of monkey. What does this represent?
a)
biological isolation
b)
geographical isolation
c)
temporal isolation
d)
anatomical isolation
8.
What do you call all of the genes in a population?
a)
Gene pool
b)
Relative Frequency
c)
Genetic Drift
d)
Allele pool
9.
Which of the following cannot introduce new alleles into a population's gene pool?
a)
Mutataion
b)
Natural selection
c)
Gene Flow
d)
All of the above introduce new alleles into the population
10.
This mechanism of evolution occurs when populations migrate.
a)
Extinction
b)
Gene flow
c)
Genetic drift
d)
Natural Selection
11.
What is geographic isolation?
a)
Members of a population live together within an geographic boundary
b)
Members of a population may become isolated from one another by geographic boundaries
c)
An isolation that is geographic
d)
None of these
12.
What is speciation?
a)
The process by which populations become geographically isolated
b)
The process in which reproductively isolated populations evolve to become distinct species
c)
The process in which reproductively isolated populations do not evole
d)
None of these
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