Taxonomy Notes Con't:
o There are 3 domains: Archaea (ancient bacteria) and Bacteria and Eukarya. Archaea and Bacteria are prokaryotic (no membrane enclosed organelles in cells) and used to be one kingdom: Monera, and Eukarya are Eukaryotic (membrane enclosed organelles in cells) with the remaining 4 kingdoms: protista, fungi, plantae, and animalia.
o To identify a specific organism, its Genus (capitalized) and Species (not capitalized) names are used. Ex. House cats: Felis domesticus. This is known as “Binomial nomenclature.”Dichotomous Key Notes:
· A Dichotomous Key is a tree diagram or list of questions comparing opposite properties, d to identify an organism.
· Each stage in the key compares 2 options. The 2 options must be exclusive and leave no other options (yes or no questions, has or doesn’t have questions, questions about 2 opposites…etc).