How do we “classify” living organisms
Classification: the systematic grouping of organisms based on _________________________________ ______________________: the science of identifying, classifying, and naming living things
A. Aristotle’s System Classified as either ______________ or ______________________ Then further divided things on whether or not they flew, swam, or walked on land
B. Linnaeus System of Binomial Nomenclature Binomial nomenclature: ◦ modern classification system which uses a 2-word naming system Was based on ________________ and ______________________ similarities First word represents the _______ of a species 2 nd word represents the specific epithet Genus + specific epithet = __________________
B. Linnaeus System of Binomial Nomenclature Example: ◦ Homo sapiens “Homo” = ________________ “sapiens” = ________________ ◦ Genus will always start with a capital letter ◦ S.E. will always be lowercase ◦ Should always be written in italics
C. Scientific vs. Common Names Animals often have common names ◦ Common names can often be misleading Taxonomists use _______________ because the language is “universal” and __________ ______________
A. Taxonomy: A Framework Taxonomy shows ___________________ relationships in the naming of organisms It also provides a framework in which to study relationships among living and extinct species
B. Taxonomy: A Useful Tool Using structural and physical characteristics to identify an organism _________________________ keys: help you determine the species name by looking at given characteristics
A. Taxonomic Rankings Taxon: a group of organisms (plural = taxa) There are only 8 taxa to remember ◦ “____________________” Domain (most broad) Kingdom Phylum Class Order Family Genus Species (most specific)
B. The Larger Taxa OCPKD Special note, plant taxonomists use the taxa “Division” rather than “Phylum” So for plants, it would be ◦ DKDCOFGS
Domain Kingdom Phylum Class Order Family Genus Species Eukarya Animalia Chordata Mammalia Carnivora Felidae Lynx rufus Lynx canadensis Bobcat Lynx
Pg ◦ #26-53 Pg ◦ #1-10 Pg ◦ #1-14
In NC Coach Manual, complete the following on a clean sheet of paper. Turn in before you leave. ◦ Pg # 153 1-4 ◦ Pg. # 1-3