27 Jun apu scin130 quiz 5
Question
Question 1 of 30
3.33/ 3.33 Points
Which organisms provide most of the nutrient supply on the ocean and are at the bottom of the ocean food web?
A.Seaweeds
B.Large fishes
C.Zooplankton
D.Phytoplankton
E.Small fishes
Feedback:Good job!
Question 2 of 30
3.33/ 3.33 Points
Which of the following statements describes zooplankton?
A.small organisms which are found riding on animals
B.all life in the oceanic ecosystem
C.free-drifting or mobile algae that form the base of the aquatic food chain
D.includes all the organisms that animals feed on
E.organisms that feed on phytoplankton
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Question 3 of 30
3.33/ 3.33 Points
Which ecosystem with fertile soil has been mainly converted into agricultural farmlands for human use?
A.Temperate grasslands
B.Taiga
C.Tundra
D.Tropical rain forest
E.Desert
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Question 4 of 30
3.33/ 3.33 Points
The flat-topped acacia tree will be found in the ___________ ecosystem.
A.Prairie grassland
B.Savanna grassland
C.Desert
D.Taiga
E.Tundra
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Question 5 of 30
3.33/ 3.33 Points
What type of lake has nutrient-poor water, a small amount of organic matter, and low productivity?
A.A mesopelagic lake
B.A eutrophic lake
C.An oligotrophic lake
D.A bathypelagic lake
E.An epipelagic lake
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Question 6 of 30
3.33/ 3.33 Points
Which ecosystem contains the most different kinds of species and total amount of living matter?
A.African savanna
B.Tundra
C.Taiga
D. Tropical rain forest
E.Temperate deciduous forest
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Question 7 of 30
3.33/ 3.33 Points
Of all the aquatic communities, _________ act as the best nutrient trap.
A. Rivers
B.Sandy beaches
C.Lakes
D.Oceans
E.Estuaries
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Question 8 of 30
3.33/ 3.33 Points
What type of forest is found in a broad belt in Northern Eurasia and North America, with cone-bearing trees?
A.Tropical rain forest
B.Desert
C.Temperate deciduous forest
D.Taiga
E.Tundra
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Question 9 of 30
3.33/ 3.33 Points
Which ecosystem are the Russian steppes, South American pampas and the North American prairies? ?
A.Tropical rain forests
B.Temperate grasslands
C.Temperate rain forests
D.Temperate deserts
E.Temperate deciduous forests
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Question 10 of 30
3.33/ 3.33 Points
The tendency for the windward side of a coastal mountain range to get more rain than the leeward side is known as:
A.The altitude effect
B.The mountain effect
C.The topography effect
D.The windward effect
E.The rain shadow effect
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Part 2 of 6 – 26.64/ 33.3 Points
Question 11 of 30
0.0/ 3.33 Points
The type of diversity which is dependent on the interactions of species at a particular location is known as:
A.Ecosystem diversity
B.Sustainable diversity
C.Genetic diversity
D.Landscape diversity
E.Keystone diversity
Feedback:Understand ecosystem diversity
Question 12 of 30
0.0/ 3.33 Points
Agriculture could reduce its use of water by ______.
A.planting drought and salt tolerant crops
B.reducing the size of the crop being planted
C.letting the natural precipitation water the crops
D.only farming in areas with plenty of water
E.all of the above
Feedback:Please review Chapter 40.
Question 13 of 30
3.33/ 3.33 Points
Which of the following is a direct value of biodiversity?
A.Wildlife helps dispose of wastes
B.Natural areas provide freshwater
C.Natural areas prevent soil erosion
D.Natural areas regulate climate
E.Wildlife provides agricultural resources
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Question 14 of 30
3.33/ 3.33 Points
Pesticides used in agriculture reduce soil ______ because they kill beneficial soil organisms as well as pests.
A.texture
B.nutrients
C.moisture
D.fertility
E.none of the above
Feedback:Good job!
Question 15 of 30
3.33/ 3.33 Points
Which of the following is false about alien species?
A.They can disrupt food webs
B.They generally stay in their current location without human interference
C.They can be transported accidentally
D.They have very little effect on island ecosystems
E.They can be transported intentionally
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Question 16 of 30
3.33/ 3.33 Points
If you were studying a subdivision of conservation biology that seeks a scientific way to return ecosystems to their former state, you would be studying which of the following?
A.Ecosystem ecology
B.Landscape ecology
C.Metapopulation ecology
D.Restoration ecology
E.Biodiversity ecology
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Question 17 of 30
3.33/ 3.33 Points
Species that influence the viability of a community, although their numbers may not be exceedingly high, are referred to as:
A.Keystone species
B.Alien species
C.Pioneer species
D.Nonnative species
E.Introduced species
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Question 18 of 30
3.33/ 3.33 Points
If you were studying an ecosystem which has the greatest biodiversity you would be studying which of the following?
A.Tropical rain forests
B.Grasslands
C.Tundra
D.Taigas
E.Temperate deciduous forests
Feedback:Good job!
Question 19 of 30
3.33/ 3.33 Points
Which of the following is primarily due to air pollution from sulfur dioxide and nitrogen oxides?
A.Eutrophication
B.Global warming
C.Ozone depletion
D.Organic chemical buildup
E.Acid deposition
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Question 20 of 30
3.33/ 3.33 Points
If you were studying a species which has totally disappeared from the planet you would be studying:
A.A threatened species
B.An introduced species
C.A keystone species
D.An endangered species
E.An extinct species
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Part 3 of 6 – 3.33/ 6.66 Points
Question 21 of 30
3.33/ 3.33 Points
To calculate the Energy Conversion Efficiency for a trophic level you:
A.Add the energy level of the higher trophic level to the energy levels of all the preceding trophic levels
B.Calculate the ratio of the energy of the higher trophic level to the lower trophic level
C.Divide the energy of the lower trophic level by the energy level of the higher trophic level
D.Multiply the energy of the higher trophic level by the energy level of the lower trophic level
Feedback:Good job!
Question 22 of 30
0.0/ 3.33 Points
In the lab activity, which of the following statements is correct about the use of the online calculator tool?
A.You cannot access the calculator tool unless you have first appropriately placed at last two organisms within their trophic levels.
B.You can access and use the calculator at any time.
C.You can only input the amounts pertaining to each individual ecosystem.
D.You cannot access the calculator tool unless you have first appropriately placed all the organisms in their respective trophic levels.
Feedback:Refer to the lab simulation for details.
Part 4 of 6 – 3.33/ 9.99 Points
Question 23 of 30
3.33/ 3.33 Points
Which of the following characterize the biomass of marine and freshwater ecosystems?
A.They have less primary producer biomass than at higher trophic levels.
B.The algae and phytoplankton making up the primary producers have a short lifespan.
C.The algae and phytoplankton which are the primary producers are rapidly harvested and removed.
D.All of the above
Feedback:Good job!
Question 24 of 30
0.0/ 3.33 Points
Based on the lab activity, grass height usually is a good indicator of
A.d. Soil contamination
B.Available moisture
C.Very little predators in the region
D.Presence of large herbivores
Feedback:Refer to the Field Guide from your lab.
Question 25 of 30
0.0/ 3.33 Points
Select the correct statement about deciduous forests ecosystems in the lab activity
A.Deciduous forests are characterized by evergreen trees such as various species of coniferous trees.
B.Deciduous forests are characterized by abundant moisture
C.Deciduous forests are characterized by warm summers and low moisture.
D.Deciduous forests are characterized by arid a ground with little plants.
Feedback:Refer to the Field Guide from the lab.
Part 5 of 6 – 9.99/ 9.99 Points
Question 26 of 30
3.33/ 3.33 Points
Freshwater ecosystems can be divided into separate zones. These are:
A.Littoral zone
B.Limnetic zone
C.Profundal zone
D.All of the above
Feedback:Good job!
Question 27 of 30
3.33/ 3.33 Points
In which zone do the decomposers live in freshwater ecosystems?
A.Littoral zone
B.Limnetic zone
C.Wetlands zone
D.Profundal zone
Feedback:Good job!
Question 28 of 30
3.33/ 3.33 Points
Opossums can be found in a deciduous forest ecosystem. Opossums eat _______ and therefore are second order heterotrophs.
A.Insects
B.Berries
C.Frogs
D.Snakes
Feedback:Good job!
Part 6 of 6 – 6.66/ 6.66 Points
Question 29 of 30
3.33/ 3.33 Points
Compare and contrast the ecological activity taking place in the littoral, limnetic, and profundal zones.
Question 30 of 30
3.33/ 3.33 Points
Predict what would happen to the ecology of a pond’s littoral zone if the surrounding trees are cut.
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