Food Webs and Ecology Pyramids

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What is an Apex Predator?

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An apex predator is a predator at the top of a food chain, with no natural predators of its own. Example: Orca.

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What is the role of a decomposer in an ecosystem?

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Decomposers break down dead materials and waste from consumers, recycling nutrients back into the ecosystem.

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What is a food web?

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A food web is a complex network of feeding relationships among organisms in an ecosystem, showing how energy flows between them.

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What is the primary producer in an ecosystem?

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Primary producers are organisms that produce energy through photosynthesis or chemosynthesis, such as plants and phytoplankton.

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What is biomass?

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Biomass is the total mass of living matter in a given area or volume, often measured in terms of energy content.

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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, defined by how organisms obtain energy.

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What is the energy flow in a food chain?

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Energy flows from producers to primary consumers, then to secondary consumers, and so on, typically decreasing at each level.

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What is the difference between a food chain and a food web?

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A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a more complex network of interconnected food chains.

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What is the significance of producers in an ecosystem?

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Producers are essential as they convert solar energy into chemical energy, forming the base of the food chain.

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What are primary consumers?

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Primary consumers are organisms that eat primary producers; they are typically herbivores.