4.3 Ecosystem Energy Flow

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What is a Food Web?

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A Food Web is a complex network of feeding relationships among various organisms in an ecosystem, showing how energy and nutrients flow through different trophic levels.

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What is an Energy Pyramid?

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An Energy Pyramid is a graphical representation that shows the flow of energy at different trophic levels in an ecosystem, illustrating how energy decreases as it moves from producers to top consumers.

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What is Photosynthesis?

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Photosynthesis is the process by which green plants, algae, and some bacteria convert sunlight energy into chemical energy in the form of glucose, using carbon dioxide and water.

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What is Chemosynthesis?

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Chemosynthesis is the process by which certain organisms, such as bacteria, produce organic compounds using energy derived from chemical reactions, often in environments without sunlight.

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What is a Food Chain?

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A Food Chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another, starting from producers to various levels of consumers.

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What are Producers?

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Producers are organisms, such as plants and algae, that can make their own food through photosynthesis or chemosynthesis, forming the base of the food chain.

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What are Consumers?

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Consumers are organisms that cannot produce their own food and rely on consuming other organisms (plants or animals) for energy.

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What is a Trophic Level?

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A Trophic Level is a position in a food chain or food web that indicates the organism's role in the flow of energy and nutrients, such as producers, primary consumers, and secondary consumers.

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What is a Decomposer?

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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 a Niche?

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A Niche is the role or function of an organism or species within an ecosystem, including its habitat, resource use, and interactions with other organisms.

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