WorksheetsEnergy Flow
Total questions: 15
Worksheet time: 8mins
Arrows in a food web represent...
eating
sunlight
energy
matter
Who is the producer?
lettuce
greenfly
ladybird
thrush
Which model below correctly represents the flow of energy in a food chain?
plants --> insects --> salmon --> bears
insects --> plants --> bears --> salmon
bears --> salmon --> insects --> plants
salmon --> bears --> plants --> insects
The amount of energy producers provide primary consumers is 55,000 joules. The amount of energy the primary consumers provide the secondary consumers is 5,500 joules. Based on the 10% rule, how much energy is provided to tertiary consumers?
550,000 J
5,500 J
550 J
55 J
The amount of energy producers provide primary consumers is 55,000 joules. The amount of energy the primary consumers provide the secondary consumers is 5,500 joules. Based on the 10% rule, how much energy is provided by the producers?
550,000 J
5,500 J
550 J
55 J
The food web below shows some of the feeding relationships among organisms in Arctic waters.
Which organisms would receive the least amount of total energy available?
seals
shrimp
baleen whales
toothed whales
The figure below shows a food chain that might exist in a meadow.
What would happen if the frog population decreased?
the snakes would have less to eat and the owls would eventually have less to eat
there would be fewer beetles
the plants would increase in number
owls would start eating beetles
Identify a food chain from the food web
hawk -> spider -> grasshopper -> plants
sun -> spider -> grasshopper -> weasel -> hawk
sun -> plants -> grasshopper -> spider -> shrew -> weasel -> owl
owl -> weasel -> shrew -> spider -> grasshopper -> plants -> sun
Identify the producers in the food web.
algae, phytoplankton
octopus, limpet
starfish, shark
seagull, octopus
Identify a primary consumer in the food web.
algae, phytoplankton
limpet
starfish
octopus
What is incorrect about the shape of this food pyramid?
the producers should contain the most energy and most biomass
the primary consumers should contain the most energy and most biomass
the secondary consumers should contain the most energy and most biomass
the tertiary consumers should contain the most energy and most biomass
Which statement correctly describes how energy flows in the food web?
energy flows from the grass to the rabbit to the fox
energy flows from the grasshopper to the mouse to the bird
energy flows from the grasshopper and mouse to the plants
energy flows from the grass to the owl and fox
If we eat a salad, what statement best fits our role in energy flow?
producer
primary consumer
secondary consumer
decomposer
The food web below shows some of the feeding relationships among organisms in Arctic waters.
Which organisms are the producers?
seals
shrimp
baleen whales
phytoplankton
If we eat a steak, what statement best fits our role in energy flow?
producer
primary consumer
secondary consumer
decomposer
