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WorksheetsFOOD CHAINS AND FOOD WEBS
Total questions: 69
Worksheet time: 2hrs 32mins
What do you call organisms that break down and recycle matter back into the ecosystem?
Carnivores
Herbivores
Omnivores
Detritivores
What do you call organisms that eat ONLY producers?
Carnivores
Herbivores
Omnivores
Detritivores
What do you call organisms that eat ONLY other consumers?
Carnivores
Herbivores
Omnivores
Detritivores
What is the MAIN source of energy supply for a food chain?
(HINT: Where did all the energy come from?)
Sunlight (absorbed by producers)
Producers
Other animals
Decomposers
What is the MAIN way most energy is lost in a food chain?
Heat
Respiration
Waste
Growth
On average, how much energy is passed from one level of a food chain to another?
10%
90%
100%
50%
In a freshwater ecosystem, ducks and snails eat grass and algae. The snails are eaten by mice and ducks. A fox will eat mice, but also ducks.
From this description, how would you describe the Ducks?
Producer
Omnivore
Carnivore
Herbivore
In a freshwater ecosystem, ducks and snails eat grass and algae. The snails are eaten by mice and ducks. A fox will eat mice, but also ducks.
From this description, how would you describe the Mice?
Producer
Secondary Consumer
Primary Consumer
Apex Predator
In a freshwater ecosystem, ducks and snails eat grass and algae. The snails are eaten by mice and ducks. A fox will eat mice, but also ducks.
From this description, what would be an example Food Chain?
Fox --> Snail --> Duck --> Mouse
Algae --> Snail --> Mouse --> Fox
Algae --> Duck --> Mouse --> Fox
Snail --> Mouse --> Fox --> Duck
Based on the Food Web, which of these statements is true?
The shark is a producer
The octopus is a primary consumer
The limpet is a secondary consumer
The zooplankton is a primary consumer
Based on the Food Web, which animal would be an omnivore?
(HINT: an omnivore eats Producers and Consumers)
The shark
The seagull
The limpet
The fish
Based on the Food Web, which animal would have the Largest Population?
The octopus
The seagull
The fish
The phytoplankton
Animal cells, which need sugar to produce energy, would be considered a consumer. Which sequence best describes the flow of energy to an animal cell?
Sun --> Plant --> Sugar --> Animal Cell
Sun --> Sugar --> Animal Cell --> Plant
Sun --> Animal Cell --> Plant --> Sugar
Sun --> Plant --> Animal Cell --> Sugar
Based on the Food Chain, how would your describe the frog?
Producer
Apex Predator
Primary Consumer (Herbivore)
Secondary Consumer (Carnivore)
Based on the Food Chain, how would your describe the grass?
Producer
Apex Predator
Primary Consumer (Herbivore)
Secondary Consumer (Carnivore)
Passing of energy, in the form of food, from one organism to another
food cycle
food network
food chain
food system
Overlapping food chains
food cycle
food network
food system
food web
Representation of the feeding relationships & flow of energy in a food chain
food pyramid
food network
food system
food assembly
Consumer that eats only plants
omnivore
insectivore
carnivore
herbivore
Consumer that eats only other animals
omnivore
frugivore
carnivore
herbivore
Consumer that eats both plants and animals
omnivore
fungivore
carnivore
herbivore
Amount of energy in a food pyramid transferred from one level to the next
0%
10%
78%
100%
Organisms that is able to convert the energy from the sun into chemical energy (glucose).
Heterotroph
Autotroph
Carnivore
Omnivore
Organisms that eat other organisms to gain energy.
Autotroph
Heterotroph
Producer
Primary Consumers
Producers
Quarternary Consumers
Secondary Consumers
Producers
Secondary Consumers
Primary Consumers
Tertiary Consumers
This graphic diagrams a _______________________.
Food Web
Food Chain
Food Pyramid
Food Buffet
Given that the bear pictured eats many types of food, including meats and plants, he is an example of an ______________________.
Producers
Producers
On average, how much energy is passed on to a higher level in the food web?
Producers are generally found at the beginning
of a food chain. Which statement best explains
why this is true?
A) Producers are usually smaller in size than
consumers.
B) Producers do not rely on other organisms
for food.
C) There are always more consumers than
producers in food chains.
D) Consumers are always more complex
organisms than producers.
The organisms represented by X are
A) Decomposers
B) Producers
C) Carnivores
D) Scavengers
Most of the food and oxygen in the
environment is produced by the action of
A) saprophytic bacteria
B) heterotrophic organisms
C) aerobic protozoans
D) autotrophic organisms
Which two organisms are classified as producers?
A) tadpole and worm
B) algae and grass
C) grass and tadpole
D) raccoon and algae
For a producer to maintain itself, which factor
must be present in its environment?
A) carnivores
B) herbivores
C) sunlight
D) parasites
Which organisms are primary consumers?
A) grass, mice, and hawks
B) owls, snakes, and hawks
C) seeds, grass, and shrubs
D) songbirds, mice, and rabbits
Which statement most accurately predicts the result
of interfering with populations in the web?
A) Removing the cricket population will have little
effect on the balance of the food web.
B) Removing all the mountain lions from the food
web will benefit the ecosystem.
C) Removing the cricket and rabbit populations
would cause the number of trees to decrease.
D) Removing deer from the food web will affect
the rabbit and grass populations.
Which population would be most immediately affected by the removal of the lizard
population?
A) sedges
B) algae
C) ants
D) centipedes
