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Classification. Classification. The process of grouping things based on their similarities. What do you think?. What are some things that you classify on a daily/weekly basis? What kinds of things do you think scientists classify?. Nom-. Latin for “A Name” Cognomina – noun – a nickname.
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Classification • The process of grouping things based on their similarities.
What do you think? • What are some things that you classify on a daily/weekly basis? • What kinds of things do you think scientists classify?
Nom- • Latin for “A Name” • Cognomina – noun – a nickname
Taxonomy • Study of how living things are classified • Knowing an organisms classification tells you a lot about its characteristics • Crow – bird – flies, has feathers, wings, hollow bones • Frog – amphibian – thin skin, lays eggs in water, double life
Binomial Nomenclature • Carolus Linnaeus – 1750s • Grouped organisms based on observable features • Two-part scientific name: • binomial nomenclature – “two names”
Genus and Species • Genus – a group of closely related organisms • Felis – domestic cats, jungle cat, sand cat • Canis – wolves, dogs, and dingos • Gallus – chickens and pheasants
Species – a group of organisms that can mate and produce fertile offspring Horse + donkey = mule Mule + mule ≠ mule – therefore a horse and a donkey are not the same species Lion + tiger = liger Liger + liger ≠ liger therefore a lion and a tiger are not the same species
Binomial NomenclatureTwo-part naming system • Genus species • Genus is in capitalized • Species is lower case
Levels of Classification • Kingdom • Phylum • Class • Order • Family • Genus • Species
A way to remember • King • Phillip • Came • Over • For • Good • Soup
The more levels that two organisms share, the more characteristics they have in common • They are usually more closely related as well.
What is the smallest taxonomic group that they all share? • What traits do you think that they share? • How are they different? • What is the largest taxonomic group that they all share? • What is the correct scientific name for each one?
What is the smallest taxonomic group that they all share? • What traits do you think that they share? • How are they different? • What is the largest taxonomic group that they all share? • What is the correct scientific name for each one?
What is the smallest taxonomic group that they all share? • What traits do you think that they share? • How are they different? • What is the largest taxonomic group that they all share? • What is the correct scientific name for each one?
What is the smallest taxonomic group that they all share? • What traits do you think that they share? • How are they different? • What is the largest taxonomic group that they all share? • What is the correct scientific name for each one?
Kingdom Phylum Class Order Genus Species Family
House cat • Platypus lion Ability to purr Brown Bear Retractable claws Placenta Hair and mammary glands
Hibiscus • Moss Pine tree Flowers Fern seeds Vascular tissue Ability to live on land
Using a Dichotomous Key • http://www.lucidcentral.com/Keys173/WhatareKeys/DichotomousKeys/tabid/215/language/en-US/Default.aspx
Domains and Kingdoms • Placement based on • Cell wall – yes/no – what is it made of? • cell type • Prokaryote – no nucleus or organelles • Eukaryote – nucleus and organelles • ability to make food • Autotroph -self -feeder - producer - photosynthesis • Heterotroph– other feeder - consumer • number of cells in their body • Unicellular • Multicellular
3 Domains and 6 Kingdoms • Domain Archaea • Archaebacteria • Domain Bacteria • Eubacteria • Domain Eukarya • Protista • Fungi • Plantae • Animalia