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CH 9 Vocabulary
CH 9 Lessons 1 and 2 Vocabulary
Term | Definition |
---|---|
Organism | Things that have all the characteristics of life |
Cell | the smallest unit of life |
Unicellular | living things that are made of only one cell |
Multicellular | living things that are made of two or more cells |
Homeostasis | an organism's ability to maintain steady internal conditions when outside conditions change |
Binomial Nomenclature | a two word scientific name |
Species | a group of organisms that have similar traits and are able to produce fertile offspring |
Genus | a group of similar species |
Dichotomous Key | a series of descriptions arranged in pairs that lead the user to the identification of an unknown organsim |
Cladogram | a branched diagram that shows the relationships among organisms, including common ancestors |