chapter 3 vocab./terms

Term Definition
adaptation a trait or characteristic that helps an organism survive in its environment
habitat the natural environment where an organism lives
niche the role of an organism in its habitat
symbiosis a close, long-lasting relationship between species
extinction the dying out of all the members of a species
population all the member of the same type of organism living in an ecosystem
predator an animal the hunts and eats other animals
prey an animal that is hunted and eaten by a predator
endangered species a species that is close to extinction
pollution the addition of harmful things to the environment
threatened species a species that is close to becoming endangered

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