Ecosystems Roles and Energy Flow

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What is an energy pyramid?

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A model used to show the amount of energy available at each level of organisms in an ecosystem.

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Who are producers in an ecosystem?

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Organisms that use the sun's energy to make their own food.

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What are trophic levels?

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Levels in an ecosystem that only receive 10% of energy from consumed organisms.

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Why are decomposers crucial in a food web?

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They return nutrients to the soil, facilitating nutrient cycling.

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What does an arrow signify in a food web?

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The flow of energy from one organism to another.

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What are primary consumers?

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Organisms that eat producers and are the second trophic level in an energy pyramid.

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What role do secondary consumers play in an ecosystem?

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They eat primary consumers and are typically carnivores or omnivores.

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Define a food chain.

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

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What is the significance of biodiversity in ecosystems?

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Biodiversity enhances ecosystem resilience and stability, allowing it to better withstand changes.

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How do energy transfers occur in an ecosystem?

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Energy transfers occur when one organism consumes another, with only about 10% of energy being passed to the next trophic level.

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