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Worksheetsreview food webs, chains and pyramids
Total questions: 36
Worksheet time: 28mins
Where does the energy go from the frog?
worm
spider
logs
eagle
Why are there so few top predators present in any ecosystem?
Because there is too much energy in the system
Because there is not enough energy remaining in the ecosystem
Because they do not need energy
Because all predators are solitary animals
How are detritivores and decomposers different?
decomposers break down dead, organic materials while detritivores eat dead organisms and wastes
detritivores break down dead, organic materials while decomposers eat dead organisms and wastes
There isn't a difference between detritivores and decomposers
decomposers come before detritivores
List the trophic levels from lowest to highest
Tertiary consumer, secondary consumer, primary consumer, primary producer
Secondary consumer, tertiary consumer, primary consumer, primary producer
Primary producer, primary consumer, secondary consumer, tertiary consumer
Primary producer, tertiary consumer, secondary consumer, primary consumer
Which is NOT a producer?
Carrots
Grains
Grasshopper
Grasses
Based on the diagram who would be a primary consumer?
Rabbit
Owl
Fox
Grass
Based on the diagram who is NOT a secondary consumer?
Mice
Bird
Owl
Fox
Based on the diagram who would be a tertiary consumer?
Rabbit
Grasshopper
Fox
Owl
Based on the diagram who could be both a primary and secondary consumer?
Grasshoppers
Mice
Foxes
Birds
The diagram shows a simple food web. Which animal is classified as an omnivore?
red fox
deer
black bear
rabbit
This diagram shows a marine food chain. The zooplankton in this food chain are
primary producers
primary consumers
secondary consumers
tertiary consumers
The table above contains information about animal diets. Which energy pyramid best represents the data in the table?
A forest ecosystem food web is shown. If additional wrens are introduced into this ecosystem, there will most likely be an immediate decrease in the
frog population
snake population
falcon population
grasshopper population
According to the diagram, nutrients from dead organisms are released into the soil by the action of _______.
producers
first order consumers
second order consumers
decomposers
A group of students on a field trip observed the following organisms on an old oak tree: woodpecker, honeybee, oak, squirrel, beetle, and caterpillar. Which of the following food chains is most likely to be found in this ecosystem?
caterpillar --> honeybee --> woodpecker
oak tree --> squirrel --> woodpecker
oak tree --> caterpillar --> woodpecker
beetle --> woodpecker --> squirrel
If animals eat plants to get energy, where do plants get their energy?
soil
water
wind
sun
Which group is not represented in the food web?
producers
primary consumers
secondary consumers
decomposers
Consumer that eats only other animals
omnivore
frugivore
carnivore
herbivore
Consumer that eats only plants
omnivore
insectivore
carnivore
herbivore
Consumer that eats both plants and animals
omnivore
fungivore
carnivore
herbivore
Overlapping food chains
food cycle
food network
food system
food web
Organism that makes its own food
consumer
producer
decomposer
predator
Organism that eats other things for food
consumer
producer
decomposer
prey
On average, this much energy transfers from prey to predator:
15%
5%
10%
100%
The average amount of energy that does not transfer to a predator, since it was used up, is (a) %.
Based on the Food Web, which animal would have the Largest Population?
The octopus
The seagull
The fish
The phytoplankton
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
If the first trophic level has 1,500 energy units how much energy will be available to organisms in the second trophic level?
(a)
