CLASSIFICATION

1. CLASSIFICATION Definitions Classification: grouping things according to similar characteristics (Examples of characteristics are size, shape, color & behavior, etc.) (Biological classification systems name & organize living things in a logical and meaningful way.)

2. History of Classification • 2) Taxonomy: the study or practice of classifying living things • 3) Basis of a classification/taxonomic system: the characteristic that is used to decide what things are placed in which groups during the process of classification • 4) A scientist who studies taxonomy is called a taxonomist.

3. History of Classification • 1) Aristotle: • A. Lived around the year of 4 BC • B. Designed a classification system for organisms • 1. The basis of his taxonomic system was the characteristic of movement. • 2. First he divided ALL living things into two groups/kingdoms: • Those that can move Those that cannot move from place to place from place to place ANIMALS PLANTS 3. Second: He divided the group called animals (can move) into 3 groups according to the way they moved: fly, walk, swim

4. History of Classification • 2) Today’s system: • A. Basis of today’s system: similarity of structure (ex.: skin covering, DNA) • B. The system used today has 6 kingdoms. Listed from the kingdom of the simplest organisms to the kingdom of the most complex organisms, these 6 kingdoms are: • 1) Archaea Kingdom • (simplest organisms) • 2) Bacteria Kingdom • 3) Protist Kingdom • 4) Fungi Kingdom • 5) Plant Kingdom • 6) Animal Kingdom • (most complex organisms)

5. Classification – definitions – Part A • 1) unicellular: made of one cell • 2) multicellular: made of more than one cell • 3) autotroph: an organism that gets its energy by making its food in its body • 4) heterotroph: an organism that gets its energy by eating other organisms

6. Classification tubeworms archaea

7. Classification • 3 types of protists: • Animal like – protozoans – heterotrophic (pseudopods, euglena, paramecium w/cilia) • Plant like – autotrophic – live in soil, bark –green, brown & red algae) • Fungus like – water mold & slime molds – heterotrophic – decomposers – live in moist soil

8. Classification

9. Kingdom Summary Chart Complete the chart by using + to indicate that the description is true and A – to indicate that the description does not apply to the organism in that Kingdom.

10. Definitions – Part B • 1. Kingdom – the largest taxonomic group; has the largest variety of organisms • 2. Phyla: more than one phylum • 3. Genus: second smallest taxonomic group; made up of related species groups • 4. Species: • a) smallest and most specific taxonomic group • b) only one kind of organism belongs to a species group • c) members are not identical to each other (allows for individual differences) • d) a group of organisms that can make offspring that are capable of reproducing

11. Mnemonic or Silly Dilly • KENNY POPPED CORN ON FARMER GREEN’S stove • KING PHILLIP’S CLASS ORDERED FIVE GRILLED sandwiches • Does this help????

12. Scientific Naming System for Organisms: Binomial Nomenclature • Definition: common name – the name that is commonly used to identify an organism • Examples: house cat, lion, gray wolf, pet dog, coyote, leopard frog

13. Binomial Nomenclature • B) Reasons a Scientific Naming System was Needed: • 1) Language differences make it difficult for scientists to communicate with each other. • 2) Some organisms have more than one common name. • 3) Some common names are misleading. • Examples: a. Silverfish are insects, not fish. • b. A seahorse is not a horse.

14. Binomial Nomenclature • C. Carolus Linnaeus • 1. Swedish scientist who lived in the 1700’s • 2. He designed the scientific naming system for organisms.

15. Today’s scientific naming system for organisms • 1. Language used was Latin because it was used by educated people. • 2. Binomial nomenclature: a two-word naming system for organisms • a. First word: (begins with a capital letter): • This is the name of the genus group to which the organism belongs. b. Second word: (all lower case letters): This is the name of the species group to which the organism belongs. c. Scientific names are either underlined or written in italics.

16. Today’s scientific naming system for organisms • Examples of scientific names of organisms Common name Scientific name house cat Felis domesticus lion Panthera leo gray wolf Canis lupus pet dog Canis familiaris coyote Canis latrans humans Homo sapiens

17. Creating Scientific Names • Latin endings for scientific names • is • us male endings • Ius • a • ia female endings • onia • um • ium neutral endings

18. Creating Scientific Names • Examples: Felis domesticus Ursus horribilis For Personal Names: 1st word2nd word • NOUN 1. ADJECTIVE • 1st letter is a capital 2. all lower case letters • Latin ending 3. Latin ending • UNDERLINE 4. UNDERLINE Example #1: Froggiushoppius Example #2: Karenaskatera Try making up your own name!!!

19. Classification • Wrap-up • Plants move by wind, water, or external forces (animals (Humans) • Kingdom – classifies on basis of cellular organization & methods of nutrition – ingest, absorb or produce • Phylum – classified on similarities in basic body plan or organization. 33 phyla. (Arthropod – (external skeleton), Mollusca – (soft, segmented body), Chordates- (Notochord-have a backbone - vertebrates), etc.

20. Classification • So, here’s how the classification system works: • Kingdom – ANIMAL or ANIMALIA • Phylum – CHORDATA • Class – MAMMALIA – has a backbone and nurses their young • Order – RODENTIA – has a backbone, nurses their young, long sharp front teeth • Family – SECURIDAE – has a backbone, nurses their young, has long sharp front teeth, and has a bushy tail • Genus – TAMIASCIURUS – has a backbone, nurses their young, has long sharp front teeth, has a bushy tail and climbs trees • Species – hudsonicus – brown fur on its back, white fur on its under parts • Tamiasciurus hudsonicus – brown squirrel