Download Chapter 11 Vocabulary Practice

CHAPTER
11
THE EVOLUTION OF POPULATIONS
Vocabulary Practice
genetic drift
geographic isolation
allele frequency
bottleneck effect
temporal isolation
normal distribution
founder effect
convergent evolution
microevolution
sexual selection
divergent evolution
directional selection
Hardy-Weinberg equilibrium
coevolution
stabilizing selection
reproductive isolation
extinction
disruptive selection
speciation
punctuated equilibrium
gene flow
behavioral isolation
adaptive radiation
A. Who Am I? Choose among these terms to answer the riddles below:
behavioral isolation
geographic isolation
temporal isolation
Hardy-Weinberg
equilibrium
normal distribution
punctuated equilibrium
CHAPTER 11
The Evolution of Populations
gene pool
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1. I separate populations with factors of time,
such as when one population reproduces in the
spring and another reproduces in the summer.
2. I look like a bell-shaped curve, having the
highest frequency in the middle.
3. I separate populations with physical barriers
so that members of each population no longer
have contact with each other.
4. I occur when there are no changes in
allele frequencies for a certain trait from
generation to generation; I rarely occur in real
populations.
5. I am a pattern of evolution that is seen in the
fossil record; I consist of short periods with
lots of evolutionary activity, followed by long
periods with much less evolutionary activity.
6. I separate populations with different courtship
or mating rituals.
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Vocabulary Practice
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VOCABULARY PRACTICE, CONTINUED
co-
=
together
converge
=
to come together from different directions
diverge
=
to go in different directions from a common point
micro-
=
small
WORD
DEFINITION
1. coevolution
2. convergent evolution
3. divergent evolution
4. microevolution
C. Choose the Correct Word In each set of questions, choose the word from the word
box that best fits each statement.
normal distribution
stabilizing selection
directional selection
disruptive selection
Copyright by McDougal Littell, a division of Houghton Mifflin Company
CHAPTER 11
The Evolution of Populations
B. Word Origins Circle the Greek and Latin word parts in each vocabulary term. Then
use the Greek and Latin meanings to construct a very basic definition of the vocabulary word.
1. Occurs when natural selection selects for
individuals with the intermediate phenotype
2. Occurs when natural selection is not acting on
a population for a certain trait
3. Occurs when natural selection selects for
individuals with one extreme phenotype
4. Occurs when natural selection selects for
individuals with both extreme phenotypes
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Vocabulary Practice
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VOCABULARY PRACTICE, CONTINUED
reproductive isolation
geographic isolation
behavioral isolation
temporal isolation
5. Species from two populations are separated by
physical barriers
6. Species from two populations can no longer
mate successfully, for any reason
CHAPTER 11
The Evolution of Populations
7. Species from two populations are separated
due to differences in courtship or mating
rituals
8. Species from two populations are separated
due to differences in the timing of their
reproduction
microevolution
convergent evolution
coevolution
divergent evolution
9. Process in which two species evolve in
Copyright © McDougal Littell/Houghton Mifflin Company.
response to changes in each other, over many
generations
10. Process in which unrelated species evolve
similar traits while adapting to similar
environments.
11. Process in which closely related species
become more and more different as they adapt
to different environments
12. Process which can occur over a few
generations, in which a population’s allele
frequencies change in any way
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Vocabulary Practice
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VOCABULARY PRACTICE, CONTINUED
D. Do-It Yourself Matching In a random order, write short definitions for each term on
the blank lines to the right. Then give your paper to a classmate who should write the number
of the term next to the correct definition.
1.adaptive radiation
2.gene pool
3.directional selection
CHAPTER 11
The Evolution of Populations
4.stabilizing selection
5.disruptive selection
6.speciation
E. Analogies Read each analogy. Decide which term is most like it.
allele frequency
gene pool
normal distribution
extinction
genetic drift
punctuated equilibrium
gene flow
geographic isolation
1. Long, flat surfaces interrupted by short, steep
Copyright by McDougal Littell, a division of Houghton Mifflin Company
steps
2. Including only two people in a survey of a large
community, and not getting representative
results
3. Medium clothing sizes being the most
common in a department store
4. A radio station that goes off the air
5. Many colleges sharing and exchanging
research ideas with each other
6. How often a certain letter-number combination
is called during bingo
7. A phone book that contains all of the phone
numbers of everyone in a city
8. Sound-proof glass that prevents people from
hearing each other
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McDougal Littell Biology