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What do the arrows represent in this diagram?

• who is being eaten
• the flow of energy
• the decomposition of organisms
• what things can change into

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An organism that lives by breaking apart dead organic matter into simpler parts is...

• scavenger
• consumer
• decomposer
• carnivore

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What do the arrows show in a food chain picture?

• They always point to the smallest animals.
• They point to the animal that tastes the best.
• They always point to the producers.
• They point in the direction that energy is flowing.

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What do you call those organisms that feed on dead plants and animals? An example of these are mushrooms

• Bacteria
• Grass
• Virus
• Fungi

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The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

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What do decomposers eat?

• only plants
• plants and animals
• only other animals
• dead organisms

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In this food chain, where does the lizard get its energy from?

• plant

• grasshopper

• mushrooms

• sun

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Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

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In an ecosystem, a fungus, such as the mushroom pictured here, functions as a

• autotroph

• heterotroph

• decomposer

• predator

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An organism that receives its nutrients by breaking down dead organisms and waste.

• Lipid

• Consumer

• Protein

• Decomposer

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