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Flow of Energy & Cycling of Matter 8.L.3.3
Quiz by Les Barley
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​Where is the largest amount of energy found in this food web?
grass
mouseÂ
hawk
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Decomposers increase soil fertility and prevent dead organisms from accumulating in the environment. How do decomposers make the soil more fertile?
Where is the largest amount of energy found in this food web?
How would an increasing shark population most likely affect this ecosystem?
Which process is occurring at the arrow labeled 4?
Which represents a short-term storage for carbon?Â
Matter cycles between the environment and living organisms in a complex web of interactions.
Which organisms provide the important link in Box A from dead organic matter to matter from the environment?
Which statement BEST explains the flow of energy as it moves through the different levels?
Mountain pocket gophers are native to Nevada.
Which activity of the gopher transfers energy from one trophic level to another in its ecosystem?
The organisms shown live in the same habitat.
Which BEST describes the exchange of energy between the organisms?
Organisms use food energy for various life activities. The diagram shows how food energy is used in a caterpillar.
Approximately what percentage of the caterpillar’s food energy is used in the production of biomass?
The pie chart illustrates the proportions of various gases in the atmosphere of Earth.
Three of the following gases are part of Wedge Z in the pie chart. Which gas is NOT a part of Wedge Z?
What happens to the amount of energy available to organisms when moving from trophic level 1 to trophic level 2?
Which organisms contribute MOST to the decomposition of dead organisms?
The diagrams show different ways to represent energy flow.
Although very different, both diagrams are acceptable because
A salt marsh has a variety of animals and plants. The pyramid represents the amount of energy transferred between organisms in a salt marsh
Which trophic level would lose the MOST useful energy as heat when organisms at that level feed on other organisms?
In which process is nitrogen from the air put into a form that plants can use?
The nitrogen cycle is an important cycle found in ecosystems. Nitrogen is used by living organisms to produce a number of complex organic molecules. Most of the nitrogen is found in the atmosphere, where it exists as a gas.
Nitrogen is made available in a useful form for animals in the
The picture shows the effect that wind can have on water movement. As the wind blows water away from shore, cold water moves up toward the surface bringing nutrients to the shallow waters.
Which statement BEST identifies the relationship taking place in this example?
Which factor BEST explains why biomass decreases as trophic level increases in a food pyramid?