Classification A Brief Introduction!. Picture yourself at a grocery store…

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Presentation transcript:

Classification A Brief Introduction!

Picture yourself at a grocery store…

You want to find this… Where do you go? Freezer aisle – Ice cream area

You want to find this… Where do you go? Breakfast/Cereal Aisle – Cold Cereals

What’s the connection to science? Like a grocery store, we try to organize living things in categories that make sense – Helps everyone find what they need – Makes it easier to describe life For an example…see the next slide!

Scientific name: Mephitis mephitis

What is classification? A way of arranging living things “scientifically” The arrangement of organisms into groups based on their relationship to each other. Taxonomy—branch of science that classifies organisms and assigns each a universally accepted name. – Not to be mistaken for… Taxidermy!

Why classify? People naturally look for patterns, so do scientists in living things. Note: classification systems change with our new knowledge of living things (and even well known organisms.) – Example: Obtaining DNA information rearranged the “tree of life” big time!

Who began classifying organisms? Carlus Linnaeus (AKA: Carl von Linné…he’s Swedish) is the father of taxonomy – Lived from Created binomial nomenclature – Genus and species name – Homo sapien – Escherichia coli

Creating Order from Chaos Logical names created – Tacitus bellus “Silent bell” Tacit = silent Bell = flower’s shape – Helianthus giganteus “Giant Sunflower” Helio = sun Gigantic = giant

Science Names vs. Common Names Ailurus fulgens Red Panda – Misnamed…it’s NOT a panda! Closer to racoons CLOSEST to weasels

Top Level of Organizations… Domains – 3 Domains: Eubacteria, Archaea and Eukarota Kingdoms – Currently 6 kingdoms – Use to be only 5

Taxonomic Classification Kingdom Phylum Class Order Family Genus Species

6 Kingdom Overview Eubacteria Archaeabacteria Protista Fungi Plantae Animalia

Bacteria/Eubacteria (=true bacteria)

Archaeabacteria

Protista

Fungi

Plantae

Animalia

What group do you think has the most living species on earth today? Flowers Fungi Bacteria Insects Mammals Protists Trees Archaea- bacteria

Recap…What does classification allow us to do? Understand how living things are related!

Cladograms/Phylogenetic Trees