TEST-Chapter 5- Biodiversity

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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 is a non-renewable resource?

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A non-renewable resource is a natural resource that cannot be replenished at the same rate it is consumed, such as coal, oil, and natural gas.

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What is the significance of biodiversity hotspots?

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Biodiversity hotspots are regions that are both rich in species diversity and under significant threat from human activities, making them critical areas for conservation.

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What is the impact of species extinction on ecosystems?

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When a species becomes extinct, it can disrupt the balance of the ecosystem, leading to changes in population dynamics and the potential collapse of food webs.

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What are algal blooms?

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Algal blooms are rapid increases in the population of algae in aquatic systems, often caused by excess nutrients from pollution.

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How does eutrophication affect aquatic ecosystems?

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Eutrophication leads to nutrient overload in water bodies, resulting in algal blooms, decreased oxygen levels, and harm to aquatic life.

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What is biomagnification?

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Biomagnification is the process by which the concentration of toxins increases in living organisms as they move up the food chain.

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What are the main causes of biodiversity loss?

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The main causes of biodiversity loss include habitat destruction, pollution, climate change, overexploitation, and invasive species.

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What role do protected areas play in biodiversity conservation?

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Protected areas help conserve biodiversity by providing safe habitats for species, preserving ecosystems, and allowing for natural processes to occur.

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What is the difference between renewable and non-renewable resources?

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Renewable resources can be replenished naturally over time (e.g., solar energy, wind), while non-renewable resources exist in finite amounts and cannot be replaced (e.g., coal, oil).