abiotic factor - A non-living thing in an ecosystem, algae - A diverse group of organisms that are producers in water environments, apex predator - An organism located at the top of a food chain or food web, biotic factor - A living thing in an ecosystem, carnivore - An animal that only eats meat, competition - The struggle between organisms for the same resources, consumer - A living thing that gets its food by eating other living things, decomposer - An organism that breaks down dead matter by releasing chemicals, decomposition - The process of breaking down dead matter and waste, detritivore - An organism that eats dead matter and waste, ecosystem - A collection of organisms interacting with each other and their environment, food chain - A simple model that shows energy flow from one species to another, food web - A complex model that shows energy flow through an ecosystem, herbivore - An animal that only eats plants, invasive species - A species that is introduced to a new ecosystem and then causes harm, omnivore - An animal that eats both meat and plants, organism - A living thing; something that carries out life processes, predator - A living thing that hunts and eats other living things for food, prey - A living thing that is hunted and eaten by another living thing, primary consumer - An organism that feeds on producers, producer - A living thing that produces its own food by using sunlight, secondary consumer - An organism that feeds on primary consumers, photosynthesis - The process in producers that uses sunlight energy to make food,

Food Chains and Food Webs

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