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Food Chains and Webs
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. Producers, who make their own food using photosynthesis or chemosynthesis, make up the bottom of the trophic pyramid. Primary consumers, mostly herbivores, exist at the next level, and secondary and tertiary consumers, omnivores and carnivores, follow. At the top of the system are the apex predators: animals who have no predators other than humans. Help your class explore food chains and webs with these resources.
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Food Web Fun
Students participate in a simulation of a Shark Bay food web to see the relationships between members of that ecosystem.
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Marine Food Webs
Students investigate marine food webs and trophic levels, research one marine organism, and fit their organisms together in a class-created food web showing a balanced marine ecosystem.
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Introduction to Keystone Species
Students are introduced to ecosystems, food webs, and keystone species. They draw a simple food web and predict the impact keystone species have on an ecosystem.
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Food Chains and Webs
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. Producers, who make their own food using photosynthesis or chemosynthesis, make up the bottom of the trophic pyramid. Primary consumers, mostly herbivores, exist at the next level, and secondary and tertiary consumers, omnivores and carnivores, follow. At the top of the system are the apex predators: animals who have no predators other than humans. Help your class explore food chains and webs with these resources.
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Food Web Fun
Students participate in a simulation of a Shark Bay food web to see the relationships between members of that ecosystem.
-
Marine Food Webs
Students investigate marine food webs and trophic levels, research one marine organism, and fit their organisms together in a class-created food web showing a balanced marine ecosystem.
-
Introduction to Keystone Species
Students are introduced to ecosystems, food webs, and keystone species. They draw a simple food web and predict the impact keystone species have on an ecosystem.