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WorksheetsEnergy transfer in an ecosystem
Total questions: 15
Worksheet time: 30mins
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 90%
The energy increases by approximately 90%
The energy increases by approximately 10%
The energy decreases by approximately 10%
Which organism should be in the 1,000 J level?
Grass
Grasshopper
Frog
Raccoon
Which organism should be in the 1 Joule portion?
Raccoon
Frog
Small mouth bass
Grass
Which activity transfers energy from one trophic level to another in an ecosystem?
A rabbit giving birth to a new little of baby rabbits
A grasshopper eating a grass by a pond
A snake shedding its skin
A raccoon producing waste.
Which organism has the most available energy
Grass
Deer
Hawk
Insect-eating bird
In the picture, what organisms are considered decomposers? (check all that apply)
Insect-eating Bird
Bacteria
Mountain Lion
Snake
Fungi
Producers are found at the bottom of the pyramid because producers
Provide energy for the consumers
Have less mass than consumers
Depend on consumers
Have fewer species than consumers
In an energy pyramid, the total energy available for consumption from one trophic level to the next one above it is:
Reduced
Conserved
Multiplied
Evenly distributed
How is energy released by an organism? (This includes plants and animals.)
It is used up by the animal and not released
It is recycled by decomposers
It is stored as biomass
It is released into the ecosystem as heat.
When organisms use energy what is created?
Heat is released
Energy isn't used by an organism
It creates biomass only
Energy is only lost
What role does the crayfish take on in the food chain?
Decomposer
Scavenger
Primary Consumer
Top predator
What would happen to the frog population is insecticide was used by the pond?
Nothing, they wouldn't be affected
It would grow in number
It would decrease in number because the grasshopper population would be destroyed.
It would die off because of the insecticide
In the graphic above, what percentage of consumed energy is saved as biomass?
50%
17%
33%
25%
What percentage of energy is stored as biomass?
44%
66%
17%
39%
Which is NOT an example of transfer energy from one trophic level to the next.
A fox catching and eating a rabbit
A robin building a nest in a tree
A squirrel eating acorns founding on the ground
A deer eating corn in the field
