APES Unit 1 and 2 Multiple Choice
Exam Questions and Answers
Photosynthesis of plankton - ANS-A major source of dissolved Oxygen in the ocean
comes from...
b. quickly depletes nutrients when soil is removed - ANS-Which of the following best
describes soil in many TRF
a. lack soil horizons
b. quickly depletes nutrients when forest is removed
c. similar to grassland soil
d. suited to grow lots of crops
e. deep and well drained
e. Africa - ANS-What is the location of the greatest remaining natural biodiversity?
a. South Africa
b. Russia
c. Cjoma
d. US
e. Africa
a. deposition of organic matter on ocean floor - ANS-Which of the following is a example
of a carbon sink?
a. deposition of organic matter on ocean floor
b. clearing trees in the Amazon forest
c. Combustion of fossil fuels in power plants
d. Decomposition of food waste by bacteria
e. Nutrient uptake by the roots of grasses in a suburban lawn
c. under many conditions, phosphorus forms stable insoluble components - ANS-Which
of the following best helps to explain why phosphorus is often a limiting factor in many
ecosystems
a. there is usually a gaseous phase in the phosphorus cycle
b. phosphorus cycles vary quickly through the environment
c. under many conditions, phosphorus forms stable insoluble components
d. phosphate is not readily taken up by plants
e. There is no anthropogenic sources of phosphorus
c. denitrification - ANS-The process by which a soil nutrient is reduced and released to
the atmosphere as a gas...
, Carbon that has been sequestered underground is added to the carbon cycle between
the atmosphere and the biosphere - ANS-How does the burning of fossil fuels contribute
to the net increase in atmospheric carbon?
Phosphorus - ANS-Guano from fish eating birds are a commercial source of what
element
b. enable the removal of gray wolves from endangered species lost - ANS-Which of the
following is a major goal of the program begun in 1995 to reintroduce the gray wolf into
the yellowstone national park?
a. decrease the number of grizzly bear because they were a nuisance
b. enable the removal of gray wolves from endangered species lost
c. increase dwindling number of tourist that visit the part yearly
d. Upset natural predator-prey balance between coyotes and elk
e. Decrease the number of sheep and cattle that wander in the park and
b. deer - ANS-Of the following organisms, which occupies the lowest trophic level?
a. spider
b. deer
c. hawk
d. lion
e. snake
b. The second law of thermodynamics - ANS-Losses of usable energy between
successive trophic levels in an ecosystem are best accounted for by which of the
following?
a. The first law of thermodynamics
b. The second law of thermodynamics
c. The law of conservation of matter
d. The process of ecological succession
e. Limiting factors in the ecosystem
a. The rate of immigration is lower for the small island than for the large island. - ANS-A
163 square-kilometer (km2) small island is found 2,000km from the mainland. A second,
larger, 230,000km2 island is found 1,000km from the mainland. Based on the theory of
island biogeography, which of the following statements is most likely true about the
small island when compared with the large island?
a. The rate of immigration is lower for the small island than for the large island.
b. The small island has niches that are more like the mainland than the large island.
c. The small island has more available resources than the large island.
d. The rate of species extinction is lower on the small island than on the large island.
b. 50 meters from mainland, 1 times 10^6 h - ANS-Five islands, A, B, C, D, and E, differ
only in distance from the mainland, area, and species diversity. Which island would be
predicted to have the highest species diversity?
a. 50 meters from mainland, 1 times 10^2 h
Exam Questions and Answers
Photosynthesis of plankton - ANS-A major source of dissolved Oxygen in the ocean
comes from...
b. quickly depletes nutrients when soil is removed - ANS-Which of the following best
describes soil in many TRF
a. lack soil horizons
b. quickly depletes nutrients when forest is removed
c. similar to grassland soil
d. suited to grow lots of crops
e. deep and well drained
e. Africa - ANS-What is the location of the greatest remaining natural biodiversity?
a. South Africa
b. Russia
c. Cjoma
d. US
e. Africa
a. deposition of organic matter on ocean floor - ANS-Which of the following is a example
of a carbon sink?
a. deposition of organic matter on ocean floor
b. clearing trees in the Amazon forest
c. Combustion of fossil fuels in power plants
d. Decomposition of food waste by bacteria
e. Nutrient uptake by the roots of grasses in a suburban lawn
c. under many conditions, phosphorus forms stable insoluble components - ANS-Which
of the following best helps to explain why phosphorus is often a limiting factor in many
ecosystems
a. there is usually a gaseous phase in the phosphorus cycle
b. phosphorus cycles vary quickly through the environment
c. under many conditions, phosphorus forms stable insoluble components
d. phosphate is not readily taken up by plants
e. There is no anthropogenic sources of phosphorus
c. denitrification - ANS-The process by which a soil nutrient is reduced and released to
the atmosphere as a gas...
, Carbon that has been sequestered underground is added to the carbon cycle between
the atmosphere and the biosphere - ANS-How does the burning of fossil fuels contribute
to the net increase in atmospheric carbon?
Phosphorus - ANS-Guano from fish eating birds are a commercial source of what
element
b. enable the removal of gray wolves from endangered species lost - ANS-Which of the
following is a major goal of the program begun in 1995 to reintroduce the gray wolf into
the yellowstone national park?
a. decrease the number of grizzly bear because they were a nuisance
b. enable the removal of gray wolves from endangered species lost
c. increase dwindling number of tourist that visit the part yearly
d. Upset natural predator-prey balance between coyotes and elk
e. Decrease the number of sheep and cattle that wander in the park and
b. deer - ANS-Of the following organisms, which occupies the lowest trophic level?
a. spider
b. deer
c. hawk
d. lion
e. snake
b. The second law of thermodynamics - ANS-Losses of usable energy between
successive trophic levels in an ecosystem are best accounted for by which of the
following?
a. The first law of thermodynamics
b. The second law of thermodynamics
c. The law of conservation of matter
d. The process of ecological succession
e. Limiting factors in the ecosystem
a. The rate of immigration is lower for the small island than for the large island. - ANS-A
163 square-kilometer (km2) small island is found 2,000km from the mainland. A second,
larger, 230,000km2 island is found 1,000km from the mainland. Based on the theory of
island biogeography, which of the following statements is most likely true about the
small island when compared with the large island?
a. The rate of immigration is lower for the small island than for the large island.
b. The small island has niches that are more like the mainland than the large island.
c. The small island has more available resources than the large island.
d. The rate of species extinction is lower on the small island than on the large island.
b. 50 meters from mainland, 1 times 10^6 h - ANS-Five islands, A, B, C, D, and E, differ
only in distance from the mainland, area, and species diversity. Which island would be
predicted to have the highest species diversity?
a. 50 meters from mainland, 1 times 10^2 h
