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Biology EOC RC3 P3
| Term | Definition |
|---|---|
| phylogeny | the study of evolutionary relationships between organisms |
| taxonomy | study of relatedness of organisms; classifying organisms based on similarities |
| dichotomous key | series of paired statements (yes or no questions) that helps identify species; helps to organize organisms by characteristics |
| phylogenetic tree or cladogram | a diagram that represents the evolutionary relationships within a group of organisms |
| aerobic | requires oxygen |
| anaerobic | does not require oxygen |
| extremophiles | organisms that thrive in places where most other life can not |
| vascular | these plants have tubes which transport water and nutrients ; (xylem and phloem) |
| terrestrial | land, or lives on land |
| invertebrate | have no backbone or spinal column |
| vertebrate | have a backbone and spinal column |
| flagella and cilia | used for cell locomotion in prokaryotes and some eukaryote cells |
| Fungi | eukaryotic organisms with cell walls composed of chitin |
| Protista | eukaryotic organisms which can be either: uni- or multi- cellular, auto- or hetero- trophic; the "junk drawer" for kingdom classification |
| Eubacteria | prokaryotic, unicellular organisms; cell walls composed of peptidoglycan |
| Archaea Bacteria | prokaryotic, unicellular organisms that live in extreme environments; cell walls composed of pseudopeptidoglycan |
| Animalia | multi-cellular, eukaryotic organisms with no cell wall; all are heterothrophic |
| Plantae | multi-cellular, eukaryotic organisms with cell walls composed of cellulose; all are autotrophic |