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Principles of Ecology
Chapter 2
1.
The act of one organism consuming another
organism for food is _______.
A. predation
B. parasitism
C. commensalism
D. mutualism
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
2.
Identify how energy flows through an
ecosystem in a typical food chain.
A. from an autotroph to
a heterotroph
B. from a heterotroph to
an autotroph
C. from a carnivore to
an herbivore
D. from an omnivore to
an herbivore
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
3.
Which are biotic factors in a forest
environment?
A. plants and microscopic
organisms living
B. pH and salt
concentration of the soil
C. sunlight, soil type and
soil nutrients
D. temperature, air
currents and rainfall
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
4.
What is the name for a group of interacting
populations that occupy the same area at
the same time?
A. ecosystem
B. habitat
C. biological community
D. biotic collection
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
5.
Which defines habitat?
A. all of the biotic factors
in an ecosystem
B. an area where an
organism lives
C. an area in which
various species interact
D. the role or position
that an organism has
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
6.
What type of organism is the foundation of
all ecosystems?
A. autotroph
B. herbivore
C. heterotroph
D. decomposer
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
7.
How do detritivores obtain their energy in an
ecosystem?
A. They feed on fragments
of dead plants and animals
B. They feed on organisms
by releasing digestive
enzymes.
C. They get energy from
inorganic substances to
make food.
D. They use chlorophyll to
capture energy from the sun.
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
8.
Which type of organism
exists at all trophic levels
except the first trophic level?
A. carnivores
B. herbivores
C. autotrophs
D. heterotrophs
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
9.
What type of organism returns nutrients to an
ecosystem?
A. decomposer
B. primary producer
C. secondary producer
D. top level consumer
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
10.
Which biogeochemical cycle involves
evaporation, transpiration, precipitation
and runoff?
A. carbon cycle
B. nitrogen cycle
C. phosphorus cycle
D. water cycle
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
11.
Which process in this cycle converts
carbon dioxide and water into
carbohydrates?
A. photosynthesis
B. respiration
C. combustion
of fossil fuels
D. deposition of
dead material
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
12.
What are the two major life processes that involve
carbon and oxygen?
A. coal formation and photosynthesis
B. photosynthesis and respiration
C. fuel combustion and open burning
D. death and decay
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
13.
What is the name of the process in which bacteria
and lightning convert nitrogen into compounds
that are useful to plants?
A. ammonification
B. denitrification
C. nitrate cycling
D. nitrogen fixation
1.
A
2.
B
3.
C
4.
D
Principles of Ecology
Chapter 2
14.
How does energy first enter a pond ecosystem?
A. through growth of algae
B. through light from the Sun
C. through decay of dead fish
D. through runoff from fields
1.
A
2.
B
3.
C
4.
D