Classification Chapter 9
Classification is the Arrangement of organisms into orderly groups based on their similarities
Classifying living things makes it easier for biologists to find the answers to many important questions: How many known species are there? What are the characteristics of each? What are the relationships between these species?
Eight Levels of Classification: Domain Kingdom Phylum Class Order Family Genus Species
Does King Phillip Come Over For Grape Soda? Domain Kingdom Phylum Mnemonic Device Eight Levels of Classification Does King Phillip Come Over For Grape Soda? Domain Kingdom Phylum Class Order Family Genus Species
Taxonomy The science of identifying, classifying, and naming living things.
Basis for Classification Carolus Linnaeus— Founder of taxonomy. Attempted to classify all living organisms by their shared characteristics.
Branching Diagrams Shows the evolutionary relationship between organisms.
Scientific Names A scientific name is always the same for a specific organism no matter how many common names it might have. Written in Latin or Greek Scientific name is underlined or italicized All known living things have a two-part scientific name
Two parts to the scientific name Genus First part of the name The name always begins with a capital letter Species Second part of the name The name always begins with a lowercase letter
Example of a scientific name Elephas maximus is an Indian Elephant Felis leo is a lion
Dichotomous Keys Aid in identifying unknown organisms Consists of several pairs of descriptive statements There are only two alternative responses
Six Kingdoms Archaebacteria Eubacteria Protista Fungi Plant Animal