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WorksheetsFood Webs Review
Total questions: 15
Worksheet time: 8mins
True or False: Most matter remains within an ecosystem.
True
False
Chemical reactions in ________ turn carbon dioxide into oxygen.
the air
producers
consumers
decomposers
Food materials move through an ecosystem in the form of...
oxygen
carbon
carbon dioxide
all of these
All of the energy that enters most ecosystems originally comes from _________.
bacteria
plants
the sun
fungi
True or False: Most of the energy that enters an ecosystem tends to remain in the ecosystem.
True
False
When a hawk consumes a rabbit, it receives _______ of the rabbit's energy.
some
most
all
none
True or False: Energy in an ecosystem generally moves in a cycle.
True
False
True or False: A food chain shows all of the organisms in an ecosystem.
True
False
The first organism in a food chain is always a...
the sun
a producer
a first stage consumer
a decomposer
A second stage consumer gets its energy from...
the sun
producers
first stage consumers
all of these
Most of the energy from producers is lost in the form of _______ at each level of an energy pyramid.
sugar
starch
oxygen
heat
In this food web, snakes can get their energy from...
rabbits
mice
foxes
all of these
True or False: Because they are underwater, coral reef ecosystems do not have producers.
True
False
If a person eats a piece of fruit, they are acting as a...
first stage consumer
second stage consumer
third stage consumer
decomposer
If a person does not eat food from a certain ecosystem, then they are not part of that ecosystem's food web.
True
False
