html5-img
1 / 9

From Bacteria to Plants Chapter 1.2/1.3 Classifying Organisms

From Bacteria to Plants Chapter 1.2/1.3 Classifying Organisms. Do You Classify Objects?. How would you classify the items in this classroom? Why would it be important to classify things?. Why Do Scientists Classify?. Classification: grouping things based on their similarities .

cdeines
Télécharger la présentation

From Bacteria to Plants Chapter 1.2/1.3 Classifying Organisms

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. From Bacteria to PlantsChapter 1.2/1.3Classifying Organisms

  2. Do You Classify Objects? How would you classify the items in this classroom? Why would it be important to classify things?

  3. Why Do Scientists Classify? • Classification: • grouping things based on their similarities. • organize living things so organisms are easier to study • Taxonomy: • The study of how living things are classified.

  4. Using the Classification System • Taxonomic Key • Series of paired statements • Describe the physical characteristics of different organisms

  5. 1st word: Genus similar organisms Ex: Types of Cats 2nd word: Species smaller groups Ex: Lions, Pumas, Housecats • Carolus Linnaeus • placed organisms into groups based on observable features • Named organisms with binomial nomenclature - a 2 part name

  6. GenusSpecies Example: Felis domesticus Types of Cats House Cat

  7. The 8 Levels of Classification • Aristotle and Linnaeus invented today’s classification system in this order: • Domain (Broadest) • Kingdom • Phylum • Class • Order • Family • Genus • Species (Narrowest)

  8. Charles Darwin’s Hypothesis:over time a species gradually changes-known as evolution • Studied Finches • Finches flew from South America to the Galapagos islands • Adapted to the new environment • Reproduced • New generation changed slightly to survive in that environment Ex: different beaks 5.Finches changed to create new species

  9. 3 Domains of Life Archaea- -Prokaryotes -No nucleus -Different chemistry Eukarya- -Eukaryotes -Have nucleus -Protists -Fungi -Plants -Animals Organisms are placed in domains and kingdoms based on: Cell type Ability to make food Number of cells in their body Bacteria -Prokaryotes -No nucleus -Harmful-strep -Helpful-yogurt

More Related