Biosphere unit review

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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 diversity of species, genetic variation, and ecosystem diversity.

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What are primary consumers?

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Primary consumers are organisms that eat producers (plants) to obtain energy. Examples include herbivores like krill, crabs, and zooplankton.

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What is an invasive species?

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An invasive species is a nonnative species that spreads widely in a new habitat, often causing harm to native species and ecosystems. Example: Kudzu in North Carolina.

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Why is biodiversity important for ecosystems?

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Biodiversity increases the stability of ecosystems, allowing them to better withstand environmental changes and disturbances.

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What role do producers play in an ecosystem?

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

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What is habitat loss?

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Habitat loss occurs when natural habitats are destroyed or altered, leading to a decline in biodiversity and the extinction of species.

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What is the impact of climate change on biodiversity?

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Climate change can alter habitats, disrupt food chains, and lead to the extinction of species that cannot adapt to new conditions.

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What are decomposers?

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Decomposers are organisms, such as fungi and bacteria, that break down dead organic matter, recycling nutrients back into the ecosystem.

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What is the significance of food webs?

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Food webs illustrate the complex feeding relationships between organisms in an ecosystem, showing how energy flows through different trophic levels.

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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, including both biotic and abiotic factors.