LS4.3 BIO1 Review

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What is algal bloom?

Back

A rapid increase in the population of algae in water bodies, often due to excess nutrients, which can lead to decreased oxygen levels.

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What is the impact of decreased dissolved oxygen in aquatic ecosystems?

Back

It can lead to the death of fish and other aquatic organisms that rely on oxygen for survival.

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What are radioactive wastes?

Back

Byproducts of nuclear power generation that can be harmful to the environment and human health.

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How does the removal of a dam affect river ecosystems?

Back

It restores natural river flow, improves water quality, and can increase biodiversity.

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What are ecosystem services?

Back

Benefits that humans receive from ecosystems, such as pollination, clean water, and climate regulation.

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What is the role of bees in ecosystems?

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Bees are key pollinators that help fertilize plants, leading to the production of fruits and seeds that humans consume.

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How do electric vehicles benefit the environment?

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They generate less air pollution compared to gas-powered vehicles, reducing greenhouse gas emissions.

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What is biodiversity?

Back

The variety of life in a particular habitat or ecosystem, which contributes to resilience and stability.

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What is the significance of nutrient levels in aquatic ecosystems?

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Excess nutrients can lead to algal blooms, which disrupt the balance of the ecosystem.

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What is ecological restoration?

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The process of assisting the recovery of an ecosystem that has been degraded, damaged, or destroyed.