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Name ______________________________ Class __________________ Date __________________
Assessment
Chapter Test
Biodiversity
MATCHING
In the space provided, write the letter of the term or phrase that best matches the
description.
_____ 1. species critical to the functioning
a. genetic biodiversity
of an ecosystem
b. endemic species
_____ 2. application of biological science
c. biodiversity
to create new products
d. keystone species
_____ 3. activities such as camping in
e. ecosystem diversity
wilderness areas
f. biotechnology
_____ 4. different genes contained within a
g. biodiversity hotspots
population
h. ecotourism
_____ 5. illegal hunting
i. captive breeding
_____ 6. number and variety of species
j. poaching
within a given area
_____ 7. program that has helped return
threatened species to the wild
_____ 8. variety of habitats and communities within ecosystems
_____ 9. species native to a particular area
_____ 10. threatened areas of high biodiversity
MULTIPLE CHOICE
In the space provided, write the letter of the term or phrase that best completes
each statement or best answers each question.
_____ 11. What groups of organisms are most in danger of extinction?
a. those with small populations
b. those that migrate or need special habitats
c. those with large populations that breed quickly
d. both (a) and (b)
_____ 12. What human activities have influenced recent extinction events?
a. habitat destruction
c. introducing exotic species
b. poaching
d. all of the above
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Environmental Science
17
Biodiversity
Name ______________________________ Class __________________ Date __________________
Chapter Test continued
_____ 13. Reasons for preserving
biodiversity include all of
the following except
a. isolating unique genetic
material so it can be
incorporated into
existing crops.
b. increasing the chances of
discovering organisms
with medicinal value.
c. preventing natural
evolution.
d. finding new plants that
can supplement the
world’s food supply.
_____ 14. How many species are
estimated to be living on
Earth?
a. between 10,000 and
1,000,000
b. between 500,000 and 1
million
c. between 1 and 5 million
d. between 10 and 50
million
_____ 15. Why are there so many
species still unknown to
modern science?
a. Many of these species
are found in remote
environments.
b. Smaller species receive
less attention than large
organisms.
c. Cataloging these species
is a huge task.
d. all of the above
_____ 16. Where are many critical
biodiversity hotspots
located?
a. cities and developed
areas of the world
b. islands, tropical rain
forests, and coastal areas
c. desert and polar
environments
d. all of the above
_____ 17. It is often difficult to save
individual species because
a. small populations are
more prone to disease.
b. inbreeding may result
in genetic disorders.
c. captive species may not
reproduce in the wild.
d. All of the above
_____ 18. Preserving entire
ecosystems rather than
individual species is a
good conservation
strategy because
a. only endangered
species will be saved.
b. developers will have
greater access to land.
c. more than one species
can be saved.
d. it will not be necessary
for environmentalists to
study the ecosystem.
_____ 19. Where are some of the
unique ecosystems of the
United States?
a. in Pacific Northwest
and California
b. in the Florida
Everglades and Hawaii
c. both (a) and (b)
d. none of the above
_____ 20. How did the CITES treaty
reduce the slaughter of
elephants?
a. It offered a bounty to
tribal leaders for
identifying poachers.
b. It banned imports and
exports of all ivory
worldwide.
c. It limited sales of ivory
to the antique market.
d. both (a) and (c)
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Environmental Science
18
Biodiversity
TEACHER RESOURCE PAGE
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Holt Environmental Science
100
Biodiversity