WorksheetsDecomposers Review
Total questions: 15
Worksheet time: 8mins
Where do decomposers get their energy from?
their own bodies
other living organisms
dead organisms and wastes
water and carbon dioxide
Which of these is an example of a decomposer?
a raccoon
an earthworm
an owl
all of these
True or False: Fungi are not considered producers, because they cannot make their own food.
True
False
True or False: All insects are decomposers.
True
False
Fungi use their digestive juices to...
get carbon dioxide from the air
absorb water from the soil
break down dead organisms
turn sunlight into sugar
What would happen to an ecosystem if decomposers did not exist?
the soil would run out of nutrients
dead organisms would not break down
wastes would pile up
all of these
Which of these decomposers is responsible for breaking down the smallest materials in an ecosystem?
an earthworm
a dung beetle
a bacterium
a fungus
Unlike consumers, fungi only store their excess food as...
sugar
fat
starch
they cannot store excess food
One of the things that makes bacteria different from other organisms is that they...
cannot break down waste
do not need energy to survive
cannot store excess food
all of these
When an organism is dormant, it is...
in a very deep sleep
no longer living
not growing or developing
very active
Which of these wastes can decomposers produce in an ecosystem?
carbon dioxide
nutrients for plants
methane gas
all of these
When decomposers die, their bodies...
are not broken down
are broken down by other decomposers
are broken down by producers
are broken down by other consumers
True or False: In order to help compost become nutritious it should...
be kept very dry
not be touched at all
be stirred regularly
not have any organisms in it
Which of these can be added to produce rich compost?
dead leaves
vegetables scraps
sawdust
all of these
True or False: If an animal eats dead organisms, it is always a decomposer.
True
False
