Chapter 5:
Biological Diversity and Conservation
Practice Test
1.
The chemical that weakens bird eggs and led to the decline in bird populations is
a.
heavy metals
b.
ozone
c.
chlorofluorocarbons
d.
DDT
Hint
2.
Contamination of air, water or the land is called __________.
a.
pollution
b.
acid precipitation
c.
a minor inconvenience
d.
runoff
Hint
3.
Which of the following is an extinct species?
a.
Passenger Pigeon
b.
African elephant
c.
American Bison
d.
California Condor
Hint
4.
Which of the following is the biggest threat to biodiversity?
a.
pollution
b.
habitat fragmentation
c.
habitat loss
d.
exotic species introduction
Hint
5.
The biggest threat to global biodiversity is:
a.
exotic species
b.
habitat loss
c.
habitat degradation
d.
habitat fragmentation
Hint
6.
Which of the following is the biggest threat to the ozone layer?
a.
algae blooms
b.
acid precipitation
c.
chlorofluorocarbons
d.
DDT
Hint
7.
In which of the following pairs of items would biodiversity be more likely to be greater in the first area than the second?
a.
small lake, large lake
b.
tundra area, savanna
c.
tropical area, temperate area
d.
arctic area, temperate area
Hint
8.
Habitat fragmentation results in __________.
a.
increased edge effects
b.
greater ozone depletion
c.
greater acid precipitation
d.
easier migration for animals
Hint
9.
Which is the best measure of biodiversity ?
a.
the number of organisms in an area
b.
the amount of fragmentation in an area
c.
the number of species in an area
d.
the temperature and precipitation in an area
Hint
10.
A researcher ropes off an area that is 3 meters by 3 meters. She finds the following: 8 plants of species X, 4 plants of species Y and 3 plants of species Z. Calculate the plant diversity of the area.
a.
5
b.
1
c.
15
d.
3
Hint
11.
If the ozone layer is depleted, additional amounts of __________ will reach Earth`s surface.
a.
ultraviolet radiation
b.
smog
c.
air pollution
d.
acid precipitation
Hint
12.
Which of the following threats to biodiversity would fall under the category of introduction of exotics.
a.
Reintroducing black-footed ferrets into Wyoming
b.
Sea lampreys swimming up the Erie Canal to enter the Great Lakes
c.
Cutting a forest
d.
Using DDT in tropical rain forest areas
Hint
13.
Approximately what percentage of the Earth`s land has been designated as a natural park or a protected area?
a.
33%
b.
15%
c.
48%
d.
6%
Hint
14.
Island X, Y and Z are 100 miles apart. Island X is 1000 hectares in size and home to 50 species of birds. Island Y is 400 hectares in size and home to 30 species of birds. Island Z is 600 hectares in size. What is the best estimate for how many species of birds it contains?
a.
60
b.
15
c.
40
d.
20
Hint
15.
Burning coal can result in nutrients leeching from forests and pine needle damage. This is because the coal burning can result in ________.
a.
acid precipitation
b.
global warming
c.
ozone depletion
d.
ground water pollution
Hint
