U2 L6: Ecosystem Interactions & Dynamics

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What is Symbiosis?

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Symbiosis is a close and long-term interaction between two different species.

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What is Natural Selection?

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Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce.

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What is Mutualism?

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Mutualism is a symbiotic relationship where both species benefit.

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What is a Pioneer Species?

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A pioneer species is the first organism to colonize barren or disturbed environments, facilitating ecological succession.

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What is Predation?

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Predation is the act of one organism hunting and consuming another for food.

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What is Competition in an ecosystem?

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Competition is the interaction between organisms or species in which both are harmed as they vie for the same resources.

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What is an Ecosystem?

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An ecosystem is a community of living organisms interacting with their physical environment.

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What is a Food Chain?

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A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

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What is a Food Web?

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A food web is a complex network of feeding relationships among various organisms in an ecosystem.

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What is Ecological Succession?

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Ecological succession is the process by which ecosystems change and develop over time.