Food Web

Where do you fall on the food web​?

Objective: We can describe the trophic levels of different organisms within an ecosystem and draw a figure labeling each organism within the ecosystem.

Environmental Science -- 11th & 12th Grade​

​Food Web vs. Food Chain

​A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem. Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.

Rabbit

Pika

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Bobcat

​​Pacific tree frog

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• Consider what each of these animals eats?

• What would we classify them as?

• Which trophic level do they fall in this ecosystem?

Open Ended

What types of food would the rabbit eat? What would you classify it as?

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Multiple Choice

Which of the four animals are considered a part of the tertiary consumers?

• Pika

• Rabbit

• Bobcat

• Pacific tree frog

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Multiple Choice

On the ecological pyramid, where would humans who eat cows fall on our consumer list?

• Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

• Quaternary consumer

Humans on a Food Web

​Depending on a human's diet they will fall on a different consumer level.

​Trophic Levels Reading

"Humans, for example, are primary consumers when they eat plants such as vegetables. They are secondary consumers when they eat cows. They are tertiary consumers when they eat salmon."​