BSCS Biology: A Molecular Approach

Chapter 25: Change in Ecosystems

Chapter Test

1.
What biome does not occur in the United States?
A)savanna
B)chaparral
C)taiga
D)desert
2.
How would a temperate deciduous forest in North America differ from one located in Asia?
A)The actual species would differ.
B)Average rainfall would differ.
C)Average temperatures would differ.
D)The kinds of vegetation would differ.
3.
What is true of fresh water ecosystems?
A)Suspended particles do not impact aquatic ecosystems.
B)The species found at the headwater of a river differ from those found downstream.
C)Phytoplankton are heterotrophic microorganisms.
D)Upstream communities are more complex than those found downstream.
4.
The major fisheries of the world can be found in the ____ zone of the ocean.
A)intertidal
B)neritic
C)abyssal
D)oceanic
5.
When North American glaciers retreated 7,000 to 10,000 years ago, plants and animals ____ the area once covered by glaciers.
A)colonized
B)migrated into
C)invaded
D)explored
6.
What is an example of primary succession?
A)Annuals grow following a volcanic eruption.
B)Lichens grow on rocks.
C)Trees grow in an abandoned pasture.
D)Cattail plants grow in a pond.
7.
As succession progresses toward a climax community, ____.
A)the diversity of species decreases
B)the community does not change
C)the system approaches equilibrium
D)competition among organisms decreases
8.
What is an example of the tragedy of the commons?
A)A farmer fails to practice crop rotation, which causes the crops to become diseased.
B)People protest the decision by federal officials to regulate access to national parks.
C)Trees are harvested from a forest only as fast as new trees can grow.
D)A river runs dry when farmers use most of the water for irrigation.
9.
The human activity most disruptive to natural ecosystems is____.
A)fossil fuel combustion
B)road building
C)agriculture
D)suburban development
10.
What is true about the Gaia hypothesis?
A)It is supported by a wealth of data.
B)It states that cooperation, not competition, is the main driving force in evolution.
C)It has been thoroughly tested by experimentation.
D)It has attracted widespread scientific support.
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.