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These sites are about symbiosis. Learn about different types of ecological relationship including mutualism, commensalism, and parasitism. There are definitions and examples of each symbiosis. Includes video clips, quizzes, and lesson plans. There are also links to eThemes Resources on An Overview of Ecosystems, Food Chains and Webs, and Organisms: Producers, Consumers, Decomposers.


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This site explains the nature of each ecological relationship with examples.
Watch a video clip showing how ants and caterpillars help each other to survive. NOTE: This site includes ads.
Watch a video clip showing how tiger groupers and cleaner gobies work together. NOTE: This site includes ads.
In a lab setting, students explore the symbiotic relationship of mutualism between termites and flagellates. NOTE: This site includes ads.
Learn about three types of symbiosis, mutualism, parasitism, and commensalism. Includes examples and an assignment.
Students watch video clips from "The Secret Lives of Sharks and Rays" episode online. There is an interactive feature of the malaria parasite to explore the concepts of symbiotic relationship. Then students discuss the importance of symbiotic relationship in ecosystem and brainstorm ideas for restoring the relationship between sharks and humans to a healthy balance. NOTE: This site includes ads and has links to external sites.
Read the description of each type of relationship and determine if it is mutualism, commensalism or parasitism.
These sites are an overview of ecosystems including what they are, how they are different from and related to habitats and biomes, and how to preserve ecosystems. Classroom activities and online exercises are included. There are links to eThemes resources on animal survival and habitats including overview, deserts, forests, grasslands, ponds and lakes, rainforests, tundras, wetlands, and mountains.
These Websites are about food chains and food webs. Includes examples of webs and chains with animals from various biomes. Learn about consumers, producers, prey, predators, herbivores, omnivores, and carnivores. There is a short animated movie, online games, quizzes, and suggested classroom activities. Included is an eThemes resource on producers, consumers, and decomposers that has additional, related sites and activities.
What is a producer, consumer, and decomposer? These are sites about these different kinds of organisms and how they interrelate to one another in food chains and food webs. There are experiments, games, other interactive features, and suggested classroom activities. Included is an eThemes resource on food chains and food webs.

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