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Vocabulary for Unit 3


one of a kind


a wide range of unique features in a group


an organism that lives in or on another organism, acquiring materials from it and harming it


the development of an offspring inside its mother's body before being born


to find the way from one place to another


to navigate or locate objects by sending out and receiving sounds


a chemical substance that is released by an organism for the purpose of communication and behavioral change


to grow and reproduce


no longer existing

endangered species

a species that is nearly extinct


the physical remains or imprint of an organism that lived in the distant past


a developmental change in shape or form of an animal

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