Unit 6 Investigating Energy Flow Through Ecosystems

What type of organisms are the first step in a food chain?

• Consumers
• Predators
• Producers

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Examples of producers:

• flies, fungus, and termites

• plants and organisms capable of photosynthesis

• lions, deer, and shrubs

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What's a food web?

• A representation of all the feeding relationships within a community.
• A way of showing how matter and energy pass from one organism to another.
• A food chain provides a more complete model of feeding relationships within a community.

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What does an energy pyramid represent?

• Food pyramids show the different food chains in a community.
• Energy pyramids show the same total matter at all levels.
• Shows the amount of energy available at each feeding level in an ecosystem.

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What is a consumer?

• An organism that makes it's own food
• An organisms that eats other organisms for energy
• An organism that breaks down dead organisms

What is a food chain?

• A chain that shows the flow of energy
• A triangle that shows trophic levels
• A chain used in fishing

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What organisms are at the bottom of an energy pyramid?

• Producer
• Consumer
• Decomposer
• Scavenger

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How much energy is passed on to each trophic level in an energy pyramid?

• 10%
• 90%
• 50%
• 80%

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Which organisms have the most available energy in an energy pyramid?

• 1st trophic level: Producer

• 1st trophic level: Consumer

• 2nd trophic level: Producer

• 2nd trophic level: Consumer

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Where do crickets get their energy?

• Cattails
• Marsh Grass
• Grasshoppers
• Shrews

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