Flow of Energy & Cycling of Matter 8.L.3.3
Quiz by Les Barley
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- Q1
Decomposers increase soil fertility and prevent dead organisms from accumulating in the environment. How do decomposers make the soil more fertile?
they add nitrogen
remove excess minerals
they remove excess water
they add carbon
30s - Q2
Where is the largest amount of energy found in this food web?
grass
mouse
hawk
rabbit
30s - Q3
How would an increasing shark population most likely affect this ecosystem?
The seagull population would decrease.
The limpet population would decrease.
The octopus population would decrease.
The algae population would decrease.
30s - Q4
Which process is occurring at the arrow labeled 4?
transpiration
precipitation
evaporation
condensation
30s - Q5
Which represents a short-term storage for carbon?
Carbohydrates stored in fruits and vegetables.
Limestone rocks quarried at Earth’s surface.
Coral reefs formed from calcium carbonate.
Coal formed from plants that lived long ago.
30s - Q6
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?
decomposers
photosynthesizers
autotrophs
parasites
30s - Q7
Which statement BEST explains the flow of energy as it moves through the different levels?
Energy decreases as it is lost as heat to the environment.
Energy is unavailable because it is used up by the organisms at Level 1.
Energy is transferred as it is produced by organisms in the next level.
Energy increases as it is gained from the environment.
30s - Q8
Mountain pocket gophers are native to Nevada.
Which activity of the gopher transfers energy from one trophic level to another in its ecosystem?
eating the roots of many plants
reproducing with other gopher species
digging burrows to live in
storing food underground
30s - Q9
The organisms shown live in the same habitat.
Which BEST describes the exchange of energy between the organisms?
Each organism obtains energy from the environment.
Each organism obtains energy by eating other organisms.
One organism obtains energy from the environment, while the others obtain energy by eating other organisms.
One organism obtains energy by eating other organisms, while the others obtain energy from the environment.
30s - Q10
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?
34%
17%
66%
50%
30s - Q11
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?
argon
water vapor
carbon dioxide
nitrogen
30s - Q12
What happens to the amount of energy available to organisms when moving from trophic level 1 to trophic level 2?
The energy decreases by approximately 10%.
The energy decreases by approximately 90%.
The energy increases by approximately 90%.
The energy increases by approximately 10%.
30s - Q13
Which organisms contribute MOST to the decomposition of dead organisms?
bacteria
viruses
insects
snakes
30s - Q14
The diagrams show different ways to represent energy flow.
Although very different, both diagrams are acceptable because
the energy levels change between diagrams.
the numbers of animals in the diagrams are different.
different energy diagrams require different organization.
The diagrams show different ways to represent energy flow.
30s - Q15
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?
5
2
4
3
30s
