click below
click below
Normal Size Small Size show me how
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 |