Ecosystems

Why is a deer classified as a herbivore?

• A deer makes its own food.
• A deer eats only plants.
• A deer eats only animals.
• A deer eats plants and animals.

Why is a racoon classified as an omnivore?

• A racoon eats only animals.
• A racoon eats only plants.
• A racoon makes its own food.
• A racoon eats plants and animals.

Which are decomposers?

• humans
• trees
• red wolves
• worms

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From where do producers get their energy?

• the ground
• other animals
• decomposers
• the sun

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A living organism that puts materials from dead  plants and animals back to the soil is called a ____________?

• carnivore
• decomposer
• herbivore
• omnivore

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The efficiency of energy transfer from a lower trophic level to the next highest level is roughly

• 1%
• 10%
• 100%
• 1000%

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Trophic levels are represented by 

• squares
• circles
• pyramids
• lines

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Organisms that create their own energy from sunlight or chemicals

• Herbivore
• Omnivore
• Autotroph
• Heterotroph 

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Biomass refers to

• Chemical Energy
• Light Energy
• Rank in the feeding heirarchy
• Amount of living tissue in an ecosystem

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The image provided is an example of a(n):

• Producer
• Autotroph
• Consumer
• Insect

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