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12 Cards in this Set

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predator
animals that catch and eat other animals
food web
2 or more interconnected food chains
barriers
any object or condition that prevents the dispersal of organisms
environmental factors
something in an organisms environment that causes a change
prey
animals caught and eaten by other animals
biotic
factors caused by living things
food chain
show the food relations between plants, plant-eaters, and animal-eaters

Example: wheat--cricket--frog--raccoon
Herbivores
plant eaters
use plants as a source of food
dispersal
gradual, random movement of organisms in various directions
abiotic
factors caused by non-living things
organism
individual living thing

any plant, animal, or other type of life
carnivores
animal-eaters
use other animals for food