Chapter Resources

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Chapter Resources
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glencoe.com
Image Bank
Foldables
Chapter Summary
Chapter Review Questions
Standardized Test Practice
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glencoe.com
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Image Bank
Forest Community
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Image Bank
Map Showing Number of Mammal Species
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Image Bank
Maize Corn
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Image Bank
Plants
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Image Bank
Passenger Pigeon
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Image Bank
Graph of Mass Extinctions
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Image Bank
Dinosaur
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Image Bank
Map Showing Population of Black Rhinos
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Image Bank
Black Rhino
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Image Bank
Koala
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Urban Sprawl
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Lake Erie Water Snake
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Factory
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Water Pollution
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Acid Rain Damage
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Bald Eagle
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Elephant
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Image Bank
Wildlife Passage Under Road
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Image Bank
Map of Wildlife and Population
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Eel Grass
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Arabian Oryx
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Eel Grass
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Image Bank
Seeds
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Image Bank
Brown Pelican
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Foldables
Biodiversity
Make the following Foldable to help you identify
what you already know, what you want to know, and
what you learned about biodiversity.
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Foldables
Fold a vertical sheet of paper from side to side.
Make the front edge about 1.25 cm shorter than
the back edge.
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Foldables
Turn lengthwise and fold into thirds.
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Foldables
Unfold and cut only the top layer along both
folds to make three tabs. Label each tab as
shown.
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Foldables
Ask Questions
Before you read the chapter, write what you
already know about biodiversity under the left
tab of your Foldable, and write questions about
what youd like to know under the center tab.
After you read the chapter, list what you learned
under the right tab.
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Reviewing Main Ideas
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Biodiversity

• A measure of biodiversity is the number of
  species present in an ecosystem.

• In general, biodiversity is greater in warm,
  moist climates then in cold, dry climates.

• Extinction occurs when the last member of a
  species dies.

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Reviewing Main Ideas
1
Biodiversity

• Habitat loss, pollution, overhunting, and
  introduced species can cause a species to become
  threatened or endangered.

• Global warming and ozone depletion could affect
  biodiversity.

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Reviewing Main Ideas
2
Conservation Biology

• Conservation biology is the study of methods for
  protecting Earths biodiversity.

• The Endangered Species Act of 1973 preserves
  biodiversity by making it illegal to harm
  threatened or endangered species.

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Reviewing Main Ideas
2
Conservation Biology

• Habitat preservation, habitat restoration, and
  wildlife management strategies can be used to
  preserve species.

• Reintroduction programs can be used to restore a
  species to an area where it once lived.

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Chapter Review
Question 1
_______ is the study of methods for protecting
biodiversity.
Answer
The answer is conservation biology. Conservation
biologists develop strategies to prevent the
continuing loss of members of a species.
LE 7.2d
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Chapter Review
Question 2
Which best describes this animal?
A. endangered B. extinct C. plentiful D.
threatened
LE 3.2b
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Chapter Review
Answer
The answer is D. A threatened species is a
species that is likely to become endangered in
the near future.
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Chapter Review
Question 3
Why is this animal threatened?
A. global warming B. introduced species C. loss
of habitat D. over hunting
LE 7.1b
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Chapter Review
Answer
The answer is C. As Australias human population
grows, the koalas habitat disappears. Koalas
rely on a certain species of Australian
eucalyptus trees for survival.
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Chapter Review
Question 4
What part of Earths atmosphere protects life on
Earth by preventing damaging amounts of the Suns
ultraviolet (UV) radiation from reaching Earths
surface?
PS 2.1a
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Chapter Review
Answer
The answer is ozone. Scientists have discovered
that the ozone layer is gradually becoming
thinner. The thinning of the ozone layer is
called ozone depletion.
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Chapter Review
Question 5
Which is produced when sulfur dioxide and
nitrogen oxide released by industries and
automobiles combine with water vapor in the air?
A. acid rain B. global warming C. ozone
depletion D. smog
LE 7.2d
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Chapter Review
Answer
The answer is A. Air pollution from factories,
power plants, and automobiles can harm sensitive
tissues of many organisms.
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Standardized Test Practice
Question 1
How many millions of years ago did the greatest
rate of extinction occur?
A. 65 B. 245 C. 360 D. 438
LE 3.2b
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Standardized Test Practice
Answer
The answer is D. This mass extinction occurred
during the Late Ordovician Period.
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Standardized Test Practice
Question 2
Which best explains the reason for putting the
black rhinoceros on the endangered species list?
A. habitat destruction B. introduced Species C.
over hunting D. pollution
LE 7.1b
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Standardized Test Practice
Answer
The answer is C. For centuries, humans have
considered rhinoceros horn to be rare and
valuable. Therefore, poachers continue to hunt
and kill these animals, even though selling
rhinoceros horn is against international law.
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Standardized Test Practice
Question 3
Which could result from an increase of carbon
dioxide gas in the atmosphere?
A. acid rain B. global warming C. ozone
depletion D. water pollution
LE 7.2d
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Standardized Test Practice
Answer
The answer is B. An increase in carbon dioxide
gas could raise Earths temperature which might
lead to climatic changes that could affect
biodiversity.
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Standardized Test Practice
Question 4
Which is most likely to have captive populations?
A. forest B. ocean C. park D. zoo
LE 7.1b
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Standardized Test Practice
Answer
The answer is D. A captive population is a
population of organisms that is cared for by
humans.
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Standardized Test Practice
Question 5
Which is NOT a cause of extinction?
A. competition B. disease C. evolution D. loss
of habitat
LE 3.2b
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Standardized Test Practice
Answer
The answer is C. Evolution is the change in the
genetics of a species over time.
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End of Chapter Resources File