Question Details

BIO 130 MODULE 6 CHECK YOUR UNDERSTANDING
1.	An area with low amounts of rainfall and moderate temperatures will develop a __________ biome.
a.    desert
b.    temperate deciduous forest
c.    temperate grassland
d.    tundra
Hint: Section 16.4
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9R:Describe the effect of temperature and rainfall to the kind of biome that develops.
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2.	If a habitat is where you live, a niche is:
a.    what you do there.
b.    where you sleep.
c.    the same thing.
d.    none of the choices apply.
Hint: Section 16.2
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9L:Distinguish between niche and habitat.
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3.	An organism that carries a disease between hosts is a:
a.    parasite.
b.    predator.
c.    vector.
d.    all of the choices apply.
Hint: Section 16.3
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9P:List typical abiotic and biotic characteristics of different biomes.
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4.	These organisms live either attached to a substrate or free-living on the ocean floor.
a.    Benthic
b.    Plankton
c.    Pelagic
d.    Littoral
Hint: Section 16.5
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9N:Describe an organism- niche, habitat, and community.
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5.	The biome with the fewest seasonal changes is the:
a.    temperate deciduous forest.
b.    grassland.
c.    tropical rain forest.
d.    boreal coniferous forest.
Hint: Section 16.4
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9R:Describe the effect of temperature and rainfall to the kind of biome that develops.
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6.	Which of the following is likely to have the highest biomass in an ecosystem?
a.    Grasshopper
b.    Frog
c.    Cow
d.    Grass
Hint: Section 15.1 and Section 15.2
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9H:State the benefits and shortcomings of using each of the following: pyramid of numbers, pyramid 
of biomass, and pyramid of energy.
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7.	The amount of plant biomass in an area may increase if there is an increase in the amount of:
a.    symbiotic nitrogen-fixing bacteria.
b.    succession.
c.    competition.
d.    denitrifying bacteria.
Hint: Section 15.4
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9C:State the importance of bacteria in nutrient cycles.
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8.	Decomposers:
a.    are unimportant links in a food web.
b.    recycle organic to inorganic compounds.
c.    cause disease and destruction.
d.    require a source of light energy.
Hint: Section 15.2
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9D:Examine the role of decomposers.
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9.	An animal that feeds on living material, but does not kill the animal it feeds on, is a:
a.    prey.
b.    host.
c.    parasite.
d.    predator.
Hint: Section 16.3
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9K:Differentiate among predation, mutualism, competition, parasitism, and commensalism.
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10.	If the world were to support the largest possible human population, all humans would need to be:
a.    carnivores.
b.    omnivores.
c.    herbivores.
d.    producers.
Hint: Section 15.2 and Section 15.3
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9G:Identify the trophic levels occupied by herbivores and carnivores, and why they are called consumers.
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11.	Population control factors that arise from outside of the population are called:
a.    extrinsic limiting factors.
b.    density-independent limiting factors.
c.    intrinsic limiting factors.
d.    density-dependent limiting factors.
Hint: Section 17.4
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9U:Identify the factors that ultimately limit population size.
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12.	If a forest fire destroys a region of the forest, which of the following will occur?
a.    Secondary succession
b.    Primary succession
c.    A climax community will be present in the burned area
d.    None of the choices apply
Hint: Section 16.6
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9O:Determine the effect humans have had on natural climax ecosystems.
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13.	Which one of the following best illustrates a density-dependent limiting factor?
a.    A farmer uses insecticide to kill large numbers of insect pests.
b.    As the human population rises, more people will starve.
c.    In the spring of the year, many animals disperse to new locations.
d.    Plants usually have difficulty getting enough oxygen.
Hint: Section 17.4
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9V:State why the human population must have an upper limit.
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14.	The euphotic zone is that region of the ocean where:
a.    photosynthesis occurs.
b.    there is a warm temperature.
c.    sessile organisms are supported.
d.    there is always light.
Hint: Section 16.5
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9S:State why some plants and animals are found only in certain parts of the world.
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15.	The difference between an ecosystem and a community is that the ecosystem has something a community does not have; the ecosystem has:
a.    producers.
b.    consumers.
c.    nonliving parts.
d.    interacting species.
Hint: Section 15.1 and Section 15.2
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9N:Describe an organism- niche, habitat, and community.
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16.	The amount of rain an area gets is part of an organism's:
a.    biotic factors.
b.    abiotic factors.
c.    community.
d.    succession.
Hint: Section 15.1
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9P:List typical abiotic and biotic characteristics of different biomes.
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17.	Transpiration is:
a.    the process by which bacteria converts ammonia into nitrate.
b.    a type of symbiotic relationship.
c.    the accumulation of a pesticide as it moves through a food chain.
d.    the loss of water from plant surfaces.
Hint: Section 15.4
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9S:State why some plants and animals are found only in certain parts of the world.
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18.	As the size of the wolf population in Yellowstone National Park has increased, many wolves have migrated from the park into areas around the park. This migration is the result of:
a.    population pressure.
b.    sex ratio changes.
c.    natality.
d.    gene frequency changes.
Hint: Section 17.1
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9U:Identify the factors that ultimately limit population size.
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19.	The way individuals within a population are arranged with respect to one another is called population:
a.    diversity.
b.    density.
c.    logistics.
d.    distribution.
Hint: Section 17.1
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9X:Define a population and identify key components that affect population growth.
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20.	People who live in poor countries have diets that are made up primarily of plant materials. This is because:
a.    plant foods are less expensive than animal foods.
b.    many calories would be lost if they fed plants to animals.
c.    more people can be supported at the herbivore level than at the carnivore level.
d.    all of the choices apply.
Hint: Section 15.5
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9J:Explain why people in poor countries eat mostly plant material.
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21.	Species A and Species B both benefit by living together. This is an example of:
a.    competition.
b.    commensalism.
c.    mutualism.
d.    succession.
Hint: Section 16.3
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9K:Differentiate among predation, mutualism, competition, parasitism, and commensalism.
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22.	A pelagic animal is:
a.    sessile.
b.    a filter feeder.
c.    a larval form.
d.    a free swimmer.
Hint: Section 16.5
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9S:State why some plants and animals are found only in certain parts of the world.
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23.	At present, the human population is:
a.    in the death phase.
b.    growing rapidly.
c.    stable.
d.    in the lag phase.
Hint: Section 17.7 and Section 17.8
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9V:State why the human population must have an upper limit.
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24.	Which interactions with other organisms will help to determine the carrying capacity of earth for humans?
a.    Cutting of forest to increase agricultural land
b.    Interracial mating
c.    Human death as a result of war
d.    Slight change in sex ratio
Hint: Section 17.7 and Section 17.8
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9U:Identify the factors that ultimately limit population size.
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25.	The most destructive activity of humans that has led to many extinctions is:
a.    predator control.
b.    pesticide use.
c.    biomagnification.
d.    habitat destruction.
Hint: Section 16.7
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9O:Determine the effect humans have had on natural climax ecosystems.
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26.	Available energy, in part, determine the:
a.    carrying capacity.
b.    gene flow.
c.    reproductive potential.
d.    all of the choices apply.
Hint: Section 17.5
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9W:Specify the importance of birthrates and death rates to population growth.
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27.	Climate change (global warming) is directly related to:
a.    the amount of carbon dioxide in the atmosphere.
b.    humans eating protein.
c.    the loss of carbon dioxide from the oceans.
d.    the size of the human population.
Hint: Section 15.5
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9R:Describe the effect of temperature and rainfall to the kind of biome that develops.
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28.	A population is not changing in size during the ______________ phase.
a.    death
b.    exponential
c.    stable equilibrium
d.    none of the choices apply.
Hint: Section 17.3
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9U:Identify the factors that ultimately limit population size.
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29.	The carrying capacity of an area for a plant is most likely determined by:
a.    accumulation of waste products.
b.    availability of raw material and energy.
c.    constant birthrate.
d.    low biotic potential.
Hint: Section 17.6
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9N:Describe an organism- niche, habitat, and community.
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30.	An animal that eats both plants and animals is:
a.    a herbivore.
b.    an omnivore.
c.    a carnivore.
d.    decomposer.
Hint: Section 15.2
SLO9:Describe the fundamental principles of ecology and ecosystems.
LO9G:Identify the trophic levels occupied by herbivores and carnivores, and why they are called consumers.
	

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