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Book/movie review
22/08/2022
Exam 8 SC160
Question 1 (5 points)
Which of these factors operates in a density-dependent manner?
Question 1 options:
Blizzard
Volcanic eruption
Food supply
Flood
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Question 2 (5 points)
The temperate zones:
Question 2 options:
have the coolest climates on Earth.
are relatively wet.
are relatively dry.
are the zones closest to the equator.
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Question 3 (5 points)
Opportunistic species typically:
Question 3 options:
are very long-living.
have a large number of offspring.
reach sexual maturity slowly.
exhibit a Type I survivorship curve.
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Question 4 (5 points)
An example of a mutualism, or +/+ relationship, is:
Question 4 options:
the relationship between corals and unicellular algae.
cryptic coloration in frogs.
herbivory.
the relationship between Virginia’s warblers and orange-crowned warblers, which use some of the same resources.
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Question 5 (5 points)
Sustainable development:
Question 5 options:
will require making difficult decisions regarding the environment and lifestyle.
must be achieved if the human species is to survive.
will require global, multinational cooperation.
involves all of the above.
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Question 6 (5 points)
Most decomposers are:
Question 6 options:
plants and fungi.
bacteria and plants.
fungi and prokaryotes.
animals.
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Question 7 (5 points)
The effect of deforestation has been to:
Question 7 options:
decrease the amount of carbon dioxide in the atmosphere. (Incorrect)
increase the amount of carbon dioxide in the atmosphere.
increase the rate at which carbon dioxide is incorporated into organic material.
increase the rate of carbon dioxide production through cellular respiration.
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Question 8 (5 points)
A regional assemblage of interacting ecosystems is a:
Question 8 options:
biome.
landscape.
movement corridor.
hot spot.
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Question 9 (5 points)
Which population is growing at the fastest rate?
Question 9 options:
Population A
Population B
Population C
Not enough information to tell
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Question 10 (5 points)
Besides the atmosphere, abiotic reservoirs of carbon dioxide include:
Question 10 options:
fossil fuels and dissolved carbon compounds in the oceans.
rocks and dissolved carbon compounds in the oceans.
fossil fuels only.
rocks only.
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Question 11 (5 points)
You arrive back in the United States after having visited a foreign country located on another continent. The customs agent stops the person in front of you and confiscates the fruit basket this person is bringing home. Being the knowledgeable person you are, you calmly explain to your enraged fellow traveler that the reason for the detainment is that the fruit basket may be:
Question 11 options:
carrying endangered fruit.
carrying a nonnative species that could damage North American ecosystems.
contaminated with CFCs that will damage the ozone layer above North America.
contaminated with sufficient DDT to cause serious harm to anyone who eats the fruit.
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Question 12 (5 points)
Which nutrients often limit the distribution and abundance of photosynthetic organisms?
Question 12 options:
Water and oxygen
Nitrogen and phosphorus
Carbon dioxide and nitrogen
Water and carbon dioxide
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Question 13 (5 points)
__________ is the maximum population size that a particular habitat can support.
Question 13 options:
Crash point
Carrying capacity
Intrinsic population size
Intrinsic rate of increase
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Question 14 (5 points)
A study of the human ecological footprint shows that:
Question 14 options:
we have already overshot the planet’s capacity to sustain us.
Earth can sustain the current population, but not much more.
Earth can sustain a population about double the current population.
human population size will soon crash.
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Question 15 (5 points)
Which of the following is a behavioral response to environmental variability?
Question 15 options:
Migrating to a different location
Acclimation
Endothermy
"Flagging" by trees
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Question 16 (5 points)
__________ convert nitrogen from a form that can be assimilated by plants to N2.
Question 16 options:
Nitrifying bacteria
Nitrogen-fixing bacteria living in the soil
Denitrifying bacteria
Nitrogen-fixing bacteria living in the root nodules of legumes
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Question 17 (5 points)
Aquatic organisms:
Question 17 options:
have a waxy coating to prevent water loss.
may experience problems with water balance.
typically have a plentiful supply of nitrogen.
never find light to be in short supply.
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Question 18 (5 points)
What is one way in which energy flow differs from chemical cycling?
Question 18 options:
Energy flow is unidirectional; chemical elements can be recycled.
Energy can enter but cannot leave an ecosystem; chemical elements can leave but cannot enter an ecosystem.
Energy flows from lower to higher trophic levels; chemicals cycle from higher to lower trophic levels.
Energy can both enter and leave an ecosystem; chemical elements always remain within a single ecosystem.
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Question 19 (5 points)
The use of the Indian mongoose to control rat populations:
Question 19 options:
shows how effective biological control can be.
shows why integrated pest management usually fails.
became a disaster when the mongoose turned out to be as invasive as its target.
is an example of how coevolution makes biological control difficult.
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Question 20 (5 points)
The red-cockaded woodpecker, an endangered species, is dependent upon __________ for maintenance of its source habitat.
Question 20 options:
thick vegetation at least 15 feet in height
fire
floods
corn snakes
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