Download Terrestrial Ecology Week 2 quiz Multiple Choice Identify the choice

Terrestrial Ecology Week 2 quiz
Multiple Choice
Identify the choice that best completes the statement or answers the question.
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1. Predator prey relationships are an example of a
a. system with no feedback.
b. positive feedback loop.
c. negative feedback loop.
d. destabilizing system.
2. What function does carbon dioxide play in Earth’s atmosphere?
a. It provides gas for humans to breathe.
b. It provides a high level of protection from the sun’s radiation.
c. It keeps Earth warm through the greenhouse effect.
d. It provides liquids for animals to drink.
3. Nutrients circulate endlessly throughout the environment in complex cycles called
a. eutrophication cycles.
b. respiration cycles.
c. photosynthesis cycles.
d. biogeochemical cycles.
4. During the process of nitrogen fixation, nitrogen gas is converted to
a. water.
b. phosphorus.
c. ammonia.
d. carbon dioxide.
5. When energy is transferred between trophic levels, the amount of available energy lost is about
a. 90 percent.
b. 50 percent..
c. 25 percent.
d. 10 percent.
6. Any being that uses the sun’s energy to create sugars is a
a. primary producer.
b. secondary producer.
c. primary consumer.
d. secondary consumer.
7. An interaction in which an individual of one species kills and consumes an individual of another is
called
a. predation.
b. parasitism.
c. herbivory.
d. symbiosis.
8. A beehive depends on pollen from flowers to survive. Flowers depend on bees to pollinate them.
Humans tend bee hives, offering the bees a place to live in exchange for some of their honey. The
relationship among these three sets of organisms is
a. parasitic.
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b. commensalist.
c. symbiotic.
d. mutualistic.
9. The ultimate source of energy in an ecosystem in which deer eat grass and coyotes eat deer is
a. the grass.
b. the sun.
c. the deer.
d. chemosynthesis.
10. In a food web that consists of grass, mice, deer, coyotes, and hawks, which species is likely to have
the greatest biomass?
a. grass
b. mice
c. coyotes
d. hawks
Modified True/False
Indicate whether the statement is true or false. If false, change the identified word or phrase to make the statement true.
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1. Producers are organisms, mainly animals, that must eat other organisms to obtain nutrients. __F
consumers_
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2. An invasive species is a species that has been introduced to a new area and lacks limiting factors.
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3. An organism that depends on another without killing it is a predator. __F parasite__
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4.
In a woodland, a rabbit eats grass, and a coyote eats the rabbit. The coyote is a secondary
consumer. ____True______
Completion
Complete each statement.
1. Nitrogen __Fixation______ is the conversion of nitrogen gas to ammonia.
Science Skills
Use the illustration to answer the following questions.
1. Identify a producer, a primary consumer, and a secondary consumer from the illustration.
2. Which populations in this ecosystem would you expect to have the fewest members, and why?
3. If an anhinga consumes a crayfish, what percentage of the energy of the crayfish’s original
plant-based meal will reach the anhinga?
4. What would happen if alligators were removed from the ecosystem? Explain the effects on each
level of the food web.
5. Identify two species in this web that might compete with each other, and explain which resources
they compete for.
SCIENCE SKILLS
1. ANS:
Plants are producers. Deer, crayfish, moorhens, raccoons, shrimp, and flagfish are primary
consumers. Pin frogs, bobcats, alligators, crayfish, killfish, largemouth bass, anhingas, and
alligators are secondary consumers.
2. ANS:
The anhingas, bobcats, and alligators would probably be fewer in number than other species, since
they are secondary or tertiary consumers and much of the ecosystem’s energy has been lost by the
time it reaches them.
3. ANS:
One percent of the original energy of the plants will be available to the anhinga.
4. ANS:
The alligator’s prey species might increase, which might put pressure on plant resources and on
other species that the alligator’s prey species eat. On the other hand, competitors of the alligator
would most likely flourish, so anhingas might also experience an increase in population.
5. ANS:
Alligators and bobcats are competing for food in the form of moorhens. Raccoons, moorhens,
white-tailed deer, crayfish, glass shrimp, and flagfish compete for plant foods. Anhingas and
alligators compete for pin frogs. Pin frogs and anhingas compete for crayfish. Bass and anhingas
compete for killfish. Bass and killfish compete for grass shrimp and worms.
Terrestrial Ecology Week 2 quiz
Answer Section
MULTIPLE CHOICE
1. ANS: C
PTS: 1
DIF: L3
REF: p. 73
OBJ: 3.2.1 Describe two major ways that Earth's systems interact.
BLM: application
2. ANS: C
PTS: 1
DIF: L2
REF: p. 79
OBJ: 3.3.2 Describe Earth's biosphere and atmosphere.
BLM: comprehension
3. ANS: D
PTS: 1
DIF: L2
REF: p. 83
OBJ: 3.4.1 Explain how the law of conservation of matter applies to the behavior of nutrients in
the environment.
BLM: knowledge
4. ANS: C
PTS: 1
DIF: L2
REF: p. 88
OBJ: 3.4.4 Explain the importance of bacteria to the nitrogen cycle.
BLM: knowledge
5. ANS: A
PTS: 1
DIF: L1
REF: p. 145
OBJ: 5.3.2 Explain the effect of inefficient energy transfer on community structure.
BLM: comprehension
6. ANS: A
PTS: 1
DIF: L1
REF: p. 142
OBJ: 5.3.1 Explain the difference between a producer and a consumer.
BLM: comprehension
7. ANS: A
PTS: 1
DIF: L1
REF: p. 136
OBJ: 5.2.2 Compare and contrast predation, parasitism, and herbivory.
BLM: knowledge
8. ANS: D
PTS: 1
DIF: L2
REF: p. 140
OBJ: 5.2.3 Describe mutualism and commensalism.
BLM: analysis
9. ANS: B
PTS: 1
DIF: L2
REF: p. 141
OBJ: 5.3.1 Explain the difference between a producer and a consumer.
BLM: application
10. ANS: A
PTS: 1
DIF: L2
REF: p. 145
OBJ: 5.3.2 Explain the effect of inefficient energy transfer on community structure.
BLM: application
MODIFIED TRUE/FALSE
1. ANS: F, Consumers
PTS:
OBJ:
2. ANS:
REF:
OBJ:
BLM:
1
DIF: L2
REF: p. 84
3.4.2 Describe the carbon cycle.
BLM: knowledge
T
PTS: 1
DIF: L1
p. 153
5.4.2 Explain the conditions necessary for a species to become invasive.
knowledge
3. ANS: F, parasite
PTS:
OBJ:
BLM:
4. ANS:
REF:
OBJ:
BLM:
1
DIF: L1
REF: p. 138
5.2.2 Compare and contrast predation, parasitism, and herbivory.
knowledge
T
PTS: 1
DIF: L2
p. 141 | p. 142
5.3.1 Explain the difference between a producer and a consumer.
application
COMPLETION
1. ANS: fixation
PTS: 1
DIF: L1
REF: p. 88
OBJ: 3.4.4 Explain the importance of bacteria to the nitrogen cycle.
BLM: knowledge