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13 terms

Food Web

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food web
a network of food chains, hierarchical series of organisms each dependent on the next as a source of food.
trophic levels
a group of organisms that share the same position on the food chain
consumer
organisms that eat other organisms
herbivore
animals that eat only plants (e.g. deer, caterpillars, rabbits, elephants)
omnivore
animals that eat both plants and animals (e.g. rats, raccoons, humans)
carnivore
animals that each other animals (e.g. spiders, hawks, lions)
scavenger
animals that feed on the bodies of dead animals (e.g. vultures, hyenas, worms)
decomposer
organisms that get their energy by breaking down the remains of dead organisms or animal wastes (e.g. fungi)
producer
organisms that use photosynthesis to make their own food, make up the first trophic level (e.g plants, algae)
primary consumer
herbivores
secondary consumer
animals that eat herbivores, also known as primary carnivores
tertiary consumer
animals that eat primary carnivores, also known as secondary carnivores
top carnivore
animals that have to predators, the top of the food chain, also known as top predators