ELL Ecosystems, cycles and coral reefs

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What is an ecosystem?

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An ecosystem includes all living (biotic) and non-living (abiotic) things in an environment, interacting with each other.

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What is a decomposer?

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A decomposer is an organism that helps recycle nutrients within an ecosystem by eating dead or decaying organisms.

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What is an autotroph?

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An autotroph is an organism that produces its own food, typically through photosynthesis, and serves as a primary energy source in a food web.

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What is the flow of energy in a food chain?

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The flow of energy in a food chain moves from producers (autotrophs) to consumers (herbivores, carnivores) and eventually to decomposers.

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What role do producers play in an ecosystem?

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Producers, or autotrophs, convert sunlight into energy through photosynthesis, forming the base of the food web.

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What is a food web?

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A food web is a complex network of interconnected food chains in an ecosystem, showing how energy and nutrients flow between organisms.

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What is a population in ecological terms?

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A population refers to a group of individuals of the same species living in a specific area at the same time.

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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 energy flows, while a food web is a more complex network of multiple food chains.

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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 number of different species.

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What is an abiotic factor?

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Abiotic factors are the non-living components of an ecosystem, such as water, sunlight, temperature, and soil.