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WorksheetsChapter 5 Practice
Total questions: 17
Worksheet time: 9mins
This graph helps to explain ________.
why the open ocean is so productive
why cultivated lands are a logical choice to replace rainforests
why we need to be concerned with damage to rainforests and coral reefs
why tundra has such high net primary productivity of biomass
the importance of deserts
Overall, it appears that terrestrial biomes with more available fresh water ________.
tend to have less productivity than those without much fresh water
tend to have about the same productivity as those without much fresh water
tend to have more productivity than those without much fresh water
don't differentiate between fresh water as rainfall and fresh water as ice in glaciers
Which statement best describes the relationship between temperature and productivity of terrestrial biomes?
Warmer biomes tend to have higher productivity than colder biomes, given sufficient moisture.
There is no relationship between temperature and productivity in terrestrial biomes.
Colder biomes tend to have higher productivity than warmer biomes, given sufficient moisture.
Seasonal, moderate temperatures tend to promote the highest levels of productivity
________ is any network of relationships among a group of components, which interact with and influence one another through the exchange of energy, matter, or information.
An interchange
A system
An ecosystem
An environmental collaboration
A system stabilized by negative feedback, with opposing processes offsetting each other, is said to be in ________.
static control
environmental balance
harmonic resonance
normal balance
dynamic equilibrium
In some areas, cattle on an open range may compact fragile soils while grazing. This can damage plant roots, leading to fewer, smaller plants, which may in turn cause cattle to graze more and work harder to obtain food. This is an example of a ________.
positive feedback loop
negative feedback loop
homeostatic system
dynamic equilibrium
The majority of Earth's fresh water exists ________
in the form of ice
in freshwater lakes, streams, and rivers
in groundwater
in the oceans
The first essential step in changing atmospheric nitrogen into more usable NH3 is called ________.
nitrification
nitrogen fixation
denitrification
ammonification
Which location on the map has the highest net primary productivity?
A
B
C
D
E
Biodiversity is partially influenced by net primary productivity (NPP). Where can the highest terrestrial rates of NPP be found?
tundra
tropical rainforests
deserts
deciduous forests
The three largest pools of the carbon cycle, in order, are ________.
sedimentary rock, oceans, and fossil fuels
freshwater streams, the atmosphere, and plants
sedimentary rock, the atmosphere, and plants
fertilizers, plants, and the atmosphere
oceans, sedimentary rock, and respiration
The largest pool of carbon in the carbon cycle is ________.
the ocean
in plants and animals
sedimentary rock
the atmosphere
the hydrosphere
Negative feedback processes tend to function within ecosystems to ________.
cause further ecological destruction
cause ecological relationships to flourish
cause ecological relationships to disintegrate
stabilize the ecosystem
Nitrogen fixation is a process that makes nitrogen available to plants and is carried out by ________.
plants during photosynthesis
volcanic eruptions
parasitic bacteria
nitrogen gas dissolving in fresh water and in the ocean
mutualistic and free-living bacteria
All of the following are fluxes in the hydrologic cycle EXCEPT ________.
infiltration
transpiration
uptake
fixation
evaporation
Which of the following describes matter and energy flow in an ecosystem?
Matter flows through an ecosystem, whereas energy is recycled within an ecosystem.
Matter and energy both cycle within an ecosystem
Energy flows through an ecosystem, whereas matter is recycled within an ecosystem
Matter and energy both flow through an ecosystem
Which of the following conclusions can be drawn from the data shown in the figure?
Agriculture accounts for 77% of the nitrogen and phosphorus entering Chesapeake Bay
Full protection of Chesapeake Bay will require consideration of activities within the bay's airshed and not just the bay's watershed
Wastewater treatment plants do not contribute significantly to nutrient pollution in Chesapeake Bay
Repairing broken septic systems will probably result in a large decrease in phosphorus pollution entering Chesapeake Bay.
Automobiles do not contribute to nutrient pollution in Chesapeake Bay.
