CLASSIFICATION OF LIFE Terms To Know Prokaryote: Simple cells that have no nucleus Eukaryote: Complex cells, with a nucleus and many organelles Unicellular: Organisms made of one cell Multicellular: Organisms made of two or more cells Autotroph: Producers who make their own food Heterotroph: Consumers who get energy from other sources besides themselves
3 Domains, 6 Kingdoms
Taxonomy: The science of identifying and classifying into related groups Taxon: a group
Taxa Did king Philip come over for grape soda?
Binomial Nomenclature A two-word scientific name assigned to every species Assigned by the Genus species Examples: Homo sapiens Acer rubrum Panthera tigris Genus is always capitalized, species is lower case Acer rubrum: red maple Panthera tigris: tiger
3 Domains, 6 Kingdoms
Bacteria All of the unicellular prokaryotes Can be autotrophic or heterotrophic Examples: Streptococcus, E-Coli, Cyanobacteria http://library.thinkquest.org/12413/img/p-moneran.jpg
Eubacteria vs. Archaebacteria (2 separate domains and kingdoms) Contain most types of bacteria Found in nearly all conditions Archaebacteria Found in unusual conditions: volcanic vents and hot springs Have unusual lipids in their cell membranes http://facstaff.uww.edu/wentzl/blacksmoker.jpg
E-Coli (Eubacteria)
Streptococcus pyogenes (Strep Throat) Eubacteria
Kingdom Protista Typically unicellular Many of the exceptions to the rules You’ll know it’s a Protista if it doesn’t fit any other category Cell walls in some, some have chloroplasts Most unicellular, some multi-cellular Autotroph or heterotroph
Amoeba
Paramecium
Slime Molds http://www.sitkanature.org/bloguploads/2006/07-30slimemold2.jpg http://www.freewebs.com/slimemold/sm5.bmp
Kingdom Fungi Heterotrophs with cell walls Most are multi-cellular (mushrooms) but some are unicellular (yeast)
Mushrooms http://www.adnet.ie/blogs/media/mushroom.jpg
Club Fungi http://www.davidlnelson.md/Cazadero/CazImages/Basidiomycetes_small.jpg
Kingdom Plantae Multicellular autotrophs with cell walls
Mosses http://www.olympicsuitesinn.com/images/hall_of_mosses_400.jpg
Ferns http://static.howstuffworks.com/gif/define-ferns-1.jpg
Flowering Plants http://www.cumbavac.org/yellowdaisy.jpg
Trees http://www2.slac.stanford.edu/tip/2005/may6/trees-web.jpg
Kingdom Animalia Multicellular heterotrophs with no cell walls
Coral http://www.ryanphotographic.com/images/JPEGS/Sponges%20vertical.jpg
Insects http://www.amonline.net.au/insects/images/site/insect1.jpg
Fish http://www.fishtankba.com/images/fish_A01.jpg
Birds
Amphibians and Reptiles
Mammals http://climateprogress.org/wp-content/uploads/2006/12/polar-bear-tongue.jpeg http://www.theage.com.au/ffximage/2006/02/09/svPOLAR_narrowweb__300x447,0.jpg
Viruses Viruses are not listed because viruses are not living! Viruses are a piece of DNA or RNA contained by protein; they are not cells. Viruses require a cell from one of the kingdoms above to reproduce.
Representing Evolutionary Relationships: Phylogenetic Tree: Scientific tree showing evolutionary history - shows relationships thought to exist between groups or organisms
Representing Evolutionary Relationships: Cladogram: Uses shared derived traits Derived traits indicate divergence from a common ancestor