Ecosystem - The area and resources used by a particular species (the habitat of a species) or an assemblage of animals and plants together with their abiotic environment, Habitat - The place or the location where an organism (or a biological population) lives, resides or exists., Trophic level - is a feeding level along a food chain, Biomass - the mass of biological material in living or recently living organisms, Decomposition - When producers and consumers die the energy remains in the organic compunds and when these are broken down the nutrients are recycled, Food chain or food web - shows the transfer of energy between organisms, Producer - Green plant, which can derive its energy from water and carbon dioxide, using the energy from the sun, First-stage consumer - Is the organism which feeds on producers, they are herbivores, Second-stage consumer - Feeds on the first stage consumers. They are carnivores, Third or fourth-stage consumers - are the top predators in a food chain. They are carnivores,

GCSE Ecology

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