U4L2: Ecosystem Dynamics

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What is biodiversity?

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Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the different species of plants, animals, and microorganisms.

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Why is biodiversity important?

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Biodiversity is important because all species depend on each other to survive; if one species becomes extinct, it can lead to the extinction of other species that rely on it.

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What is a keystone species?

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A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance, often providing critical resources for many other species.

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How do keystone species affect biodiversity?

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Keystone species help maintain the structure of an ecosystem and support a diverse range of species by providing essential resources.

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What is the predator-prey relationship?

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The predator-prey relationship is an ecological interaction where one organism (the predator) hunts and consumes another organism (the prey).

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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, involving a series of species replacements.

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What is primary succession?

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Primary succession occurs in lifeless areas where soil has not yet formed, such as after a volcanic eruption or glacier retreat.

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What is secondary succession?

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Secondary succession occurs in areas where a disturbance has destroyed an existing ecosystem but left the soil intact, such as after a forest fire.

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What is the correct order of ecological succession?

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The correct order of ecological succession is lichens - grasses - shrubs - trees.

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What role do producers play in an ecosystem?

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Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.