Ecosystem Interactions

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What is an ecosystem?

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An ecosystem is a community of living (biotic) and nonliving (abiotic) things interacting in a specific environment.

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What type of relationship is parasitism?

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Parasitism is a symbiotic relationship where one organism benefits at the expense of another, such as a tapeworm in a dog.

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What is mutualism?

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Mutualism is a symbiotic relationship in which both organisms benefit, like bees pollinating flowers.

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What is predation?

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Predation is an interaction where one organism (the predator) hunts and kills another organism (the prey), such as a lion hunting an antelope.

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What is competition in an ecosystem?

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Competition occurs when two or more organisms vie for the same resources, such as food, water, or space.

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What is commensalism?

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Commensalism is a symbiotic relationship where one organism benefits and the other is neither helped nor harmed, like barnacles on a whale.

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What are producers in an ecosystem?

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Producers are organisms that create their own food through photosynthesis, such as plants.

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What are consumers in an ecosystem?

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Consumers are organisms that cannot produce their own food and must eat other organisms, such as animals.

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What is a food chain?

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A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

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What is a food web?

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A food web is a complex network of interconnected food chains in an ecosystem, showing how different organisms are related.

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