TAXONOMY CLASSIFICATION SCIENTIFIC NAMES Taxonomy is the science

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TAXONOMY & CLASSIFICATION

TAXONOMY & CLASSIFICATION

SCIENTIFIC NAMES • Taxonomy is the science of classifying organisms and assigning each an

SCIENTIFIC NAMES • Taxonomy is the science of classifying organisms and assigning each an official name • Early methods described physical characteristics in great detail • Post Oak Tree - “Oak with deeply divided leaves that have no hairs on the undersides and no teeth around their leaf edges”

• Current classification system is based on the work of Carl Linneaus grouping

• Current classification system is based on the work of Carl Linneaus grouping organisms together based on common structural characteristics. • (Called taxon/taxa) • Binomial Nomenclature- a two word naming system using the genus and species names • (Post Oak - Quercus stellata)

LINNAEUS’S SYSTEM (7 LEVELS) Big Small Kingdom Phylum Class Order Family Genus species

LINNAEUS’S SYSTEM (7 LEVELS) Big Small Kingdom Phylum Class Order Family Genus species

Common name: Blob Fish Scientific Name: Psychrolutes marcidus When written the genus is always

Common name: Blob Fish Scientific Name: Psychrolutes marcidus When written the genus is always capitalized and the species is not.

Grizzly bear Black bear Giant panda Red fox KINGDOM Animalia PHYLUM Chordata CLASS Mammalia

Grizzly bear Black bear Giant panda Red fox KINGDOM Animalia PHYLUM Chordata CLASS Mammalia ORDER Carnivora FAMILY Ursidae GENUS Ursus SPECIES arctos Abert Coral Sea star squirrel snake

HOW TO REMEMBER THE ORDER OF TAXA? Kingdom Phylum Species Class Order Family •

HOW TO REMEMBER THE ORDER OF TAXA? Kingdom Phylum Species Class Order Family • King Phillip Came Over Soup • Kids Prefer Candy Over Salad • Killer Piranhas Can Often Sushi Genus For Good Fresh Green Find Good

LINNAEUS’S SYSTEM (7 LEVELS) Big Small DOMAIN Kingdom Phylum Class Order Family Genus species

LINNAEUS’S SYSTEM (7 LEVELS) Big Small DOMAIN Kingdom Phylum Class Order Family Genus species

WHY DOES IT HELP? AS - Classification CC - Taxonomy

WHY DOES IT HELP? AS - Classification CC - Taxonomy

Ch. 17 -1 “The Linnaean System of Classification” • Read pp. 504 -507 •

Ch. 17 -1 “The Linnaean System of Classification” • Read pp. 504 -507 • Vocabulary terms in box on p. 504 • Questions p. 507 #1 -5

CLADOGRAMS Used derived characteristics to show evolutionary relationships among a group of organisms Appendages

CLADOGRAMS Used derived characteristics to show evolutionary relationships among a group of organisms Appendages Crab Conical Shells Barnacle Limpet Crustaceans Crab Gastropod Barnacle Limpet Molted exoskeleton Segmentation CLASSIFICATION BASED ON VISIBLE SIMILARITIES Tiny free-swimming larva CLADOGRAM

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