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Classification system


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Classification system

  1. 1. CLASSIFICATION What is does the word classify mean? Classify - to group things according to similar/different features (structures) that they share “Science” of classification is called taxonomy 1
  2. 2. Classification: Living things vs. Nonliving things Properties of Nonliving Things (Property- A quality/trait/feature that describes object) Not made of cells Do not carry out life activities Do not move by themselves Do not develop and reproduce 2
  3. 3. Classification: Living things vs. Nonliving things Properties of Living Things Carries out basic life activities Move, grow, and reproduce Senses and reacts to their environment Organism- A living thing that can carry out all of the basic life activities 3
  4. 4. WHAT’S IN A NAME? •Scientists have a system for naming all the living organisms on earth. •The system was created by a Swedish scientist named Carolus Linnaeus •Developed over 200 years ago •He gave each organism a two-word Latin name (Binomial Nomenclature) Bi = two Nomial = name 4
  5. 5. Linneaus’ System of Scientific Names Each species of a living thing is given a DOUBLE NAME EX: Just like your first and last name First Name (Genus) Tells which group of similar species the living thing belongs to Second Name (Species) Tells the name of the one particular species in that genus 5
  6. 6. Linneaus’ System of Scientific Names Example: Scientific Name for a dog Canis familiaris Scientific Name for a Timber Wolf Canis lupus Scientific Name for a Coyote Canis latrans •Notice that the word Canis is used in all of these names. This is the Latin word for DOG. •It is used as the genus name because these animals are all dog-like animals •The second name, species, indicates the particular type of 6 dog
  7. 7. Linneau’s System of Scientific Names Binomial Nomenclature - Rules Example: Canis familiaris 1. First letter of first word (genus) is always capitalized 2. First letter of second word (species) is not capitalized 3. Both words are italicized or both words are underlined Canis familiaris DO NOT underline space between words!!! 7
  8. 8. How Are Living Things Classified? •There are 7 levels in the classification system of organisms •As one goes from the Kingdom to the Species (DOWNWARD)…An increase in the similarity between organisms occur •There are fewer numbers of different kinds of organisms 8
  9. 9. How Are Living Things Classified Cont’d? Kingdom: The highest level Phylum: A subdivision of a kingdom Class: Each phylum is divided into classes Order: Each class is divided into orders Family: Each order is divided into families Genus: Each family is divided into genera Species: Lowest level (represents a single type of organism) 9
  10. 10. How Are Living Things Classified Cont’d? Homework: Write an original catch phrase for the categories of classification so that each word in the phrase begins with the letter of the category in their correct order from largest to smallest Example: Kids play cards on fat green stools Phyllum Kingdom Order Class Species Family Genus 10
  11. 11. How Are Living Things Classified Cont’d? Assignment: Write-out, highlight, and then following questions about how living things are classified. 1. Who was Carolus Linneaus? 2. Define property. 3. Give one example of a property. 4. List the 7 levels of classification starting with the largest group. 5. What is binomial nomenclature? 6. List the three rules of binomial nomenclature. 11