Life Science: Ecology, Book E

Chapter 5: Conserving Life

Conserving Life

1.
Which one of the following would be an example of a reintroduction program?
A)keeping oryxes in the Phoenix Zoo
B)preventing poachers from killing elephants
C)moving brown pelicans from Florida to Louisiana
D)protecting manatees from powerboats
2.
Why is it important to identify endangered species?
A)to help poachers find them
B)so they can be used for food
C)to help prevent extinctions
D)so they do not kill humans
3.
A(n) __________ is a species that moves into an ecosystem as a result of human actions.
A)native species
B)endangered species
C)introduced species
D)extinct species
4.
The U.S. Endangered Species Act of 1973 is an example of using __________ as a conservation strategy.
A)habitat restoration
B)habitat preservation
C)wildlife management
D)legal protection
5.
The Lake Erie water snake is classified as a threatened species because of __________.
A)global warming
B)habitat loss
C)acid rain
D)introduced species
6.
Which of the following should you pour down a storm drain?
A)any liquid waste
B)used motor oil
C)none of the answers are correct
D)old paint
7.
The process of bringing a damaged habitat back to a healthy condition is called __________.
A)wildlife management
B)habitat preservation
C)habitat restoration
D)habitat reintroduction
8.
The ozone layer prevents damaging amounts of __________ from reaching Earth's surface.
A)carbon dioxide
B)ultraviolet radiation
C)acid rain
D)pollutants
9.
Although most medicines now are made in factories, many originally came from __________.
A)wild plants
B)Canada
C)Mexico
D)mammals
10.
Because a forest has more species than a wheat field, the forest is said to have a higher __________.
A)biodiversity
B)ecosystem
C)ozone layer
D)extinction rate
11.
A species that once was present on Earth but has died out is a(n) __________ species.
A)threatened
B)stable
C)endangered
D)extinct
12.
An increase in __________ in the atmosphere could raise Earth's temperature a few degrees.
A)ozone
B)oxygen
C)acid
D)carbon dioxide
13.
The sale of __________ to hunt or fish in a park provides funds for maintaining the wildlife area.
A)bait
B)licenses
C)guns
D)laws
14.
Unlike the extinction of dinosaurs, many extinctions that have taken place in the past 20 years probably have been caused by __________.
A)volcanoes
B)meteorites
C)human activities
D)dust and ash
15.
Which one of the following is a threatened species?
A)Australian koala
B)black rhinoceros
C)dinosaur
D)house cat
16.
Why would you expect biodiversity to be greater in Mexico than in Canada?
A)Mexico has less pollution.
B)Canada is too wet.
C)Canadians don't like animals.
D)Mexico is closer to the equator.
17.
How have people used biodiversity to help improve food crops?
A)weaving fibers from plants into clothing
B)crossbreeding crop plants with wild plants
C)using building materials from plants
D)treating disease with medicines from plants
18.
A conservation biologist trying to safeguard manatees also must take into account the needs of the __________ population.
A)human
B)Lake Erie water snake
C)maple tree
D)grizzly bear
19.
Which one of the following is a way habitat preservation can be used to protect species?
A)reintroducing species into a habitat
B)linking parks with wildlife corridors
C)placing species on an endangered list
D)preventing poachers from killing animals
20.
Which one of the following ecosystems would you predict to be the most stable?
A)a wheat field
B)a pond full of catfish
C)a vineyard of grapevines
D)a tropical rain forest
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