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- 1. Multiple Choice
What is the name of the process where the remains of living things rot, decay or break down?DisintegrationDissolveDecompositionRecycling - 2. Multiple ChoiceA living organism that puts materials from dead plants and animals back to the soil is called a ____________?carnivoredecomposerherbivoreomnivore
- 3. Multiple ChoiceAn ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?They break down dead organisms to return nutrients to the soil.They produce their own food for survival.They play a role in preventing weathering and erosion.They provide most of the energy to consumers.
- 4. Multiple ChoiceWhich best describes how decomposers help support life in an ecosystem?Decomposers add nutrients to the soil.Decomposers provide a habitat in the ecosystem.Decomposers add producers to the ecosystem.Decomposers provide energy for consumers.
- 5. Multiple ChoiceWhich best describes the role of decomposers in an ecosystem?Decomposers eat consumers and pass along energy.Decomposers eat scavengers and pass along energy.Decomposers get energy from the sun to help producers.
Decomposers recycle matter.
- 6. Multiple ChoiceWhich is an example of a decomposer?a hawka mousea flowera mushroom
- 7. Multiple ChoiceWhich describes a decomposer?an organism that eats only plantsan organism that makes its own foodan organism that breaks down dead matteran organism that receives energy from the sun
- 8. Multiple Choice
How are decomposers different from plants?
They are not different
They cannot make their own food through photosynthesis like plants
They don't need nutrients to survive
They are not important to the environment
- 9. Multiple Choice
Which of the following lists contains only decomposers?
fungi, trees, worms, insects
worms, insects, bacteria, fungi
bacteria, trees, fungi, worms
dirt, bacteria, fungi, worms
- 10. Multiple Choice
Which of the following statements is true?
Decomposers are a special type of producer
Worms are not decomposers
Decomposers are living things
None of these are true
- 11. Multiple Choice
Decomposers break down waste into -
nutrients and mud
chemicals and dirt
nutrients and chemicals
oxygen and chemicals
- 12. Multiple Choice
How do decomposers help plants?
They eat other insects that might eat the plants.
They do not compete against the plants for food.
They scare away potential predators of plants.
They release nutrients into the soil that plants use to grow.
- 13. Multiple Choice
What are the two important jobs of a decomposer in an ecosystem?
keep waste from piling up and give carnivores energy
put energy back in the food chain and keep waste from piling up
put energy back in the food chain and compete against herbivores for food
supply the oxygen needed for plants to make food and keep waste from piling up
- 14. Multiple Choice
Mushrooms are a type of
fungi
plant
bacteria
invertebrate
- 15. Multiple Choice
What organisms work with fungi and bacteria to break down material?
tree stumps
earthworms
small animals
all of the above
- 16. Multiple Choice
Decomposers ________ the materials they digest.
destroy
create
recycle
produce
- 17. Multiple Choice
Mold is a type of
fungus that breaks down plants.
bacteria that breaks down food.
fungus that breaks down food.
bacteria that breaks down animals.
- 18. Multiple Choice
How is excess energy stored by fungi?
as fat
as starch
as sugar
in roots
- 19. Multiple Choice
Dormant bacteria are
not developing
storing energy
breaking down
no longer living
- 20. Multiple Choice
___________ is one type of waste created by decomposers.
mold organisms
carbon dioxide
oxygen gas
compost
- 21. Multiple Choice
Decomposers in the rainforest ___________ break down materials
A. slowly B:B. do not C:C. quickly D:D. rarely
do not
quickly
rarely
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