1 / 10

CLASSIFICATION is the grouping of objects or organisms based on a set of criteria

CLASSIFICATION is the grouping of objects or organisms based on a set of criteria. How did classification begin?. Aristotle was the first to create a biological system of classification over two thousand years ago. Defining characteristics that he used were: Animal or plant

christent
Download Presentation

CLASSIFICATION is the grouping of objects or organisms based on a set of criteria

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. CLASSIFICATION is the grouping of objects or organisms based on a set of criteria

  2. How did classification begin? • Aristotle was the first to create a biological system of classification over two thousand years ago. • Defining characteristics that he used were: • Animal or plant • Bloodless or red-blooded • Habitats • Size • Physical Features

  3. A new system was needed! • Aristotle’s classification system did not work because it did not account for evolution.

  4. A new system emerged in the 1700s • Carolus Linnaeus developed the modern classification system of TAXONOMY. • TAXONOMY is a discipline of biology concerned with identifying, naming and classifying species based on natural relationships.

  5. Classification goes from a broad set of characteristics to a specific set of characteristics

  6. Linnaeus’s System • Linnaeus categorized organisms according to their physical features and behavior. • Linnaeus named organisms using a system called BINOMIAL NOMENCLATURE. • This is a system that gives every species a two part name.

  7. How to use Binomial Nomenclature Homo sapiens • The first part is the genus (Homo) and the second part is the species (sapiens) • The first letter of the genus name is always capital • The first letter of the species name is always lowercase • If printed it must be italicized, if handwritten it must be underlined.

  8. Understanding Taxonomy • Living organisms are classified according to 8 main categories • Domain is the most general category and species is the most specific

  9. How are organism’s classified? • In order to classify organisms, scientists use something called a DICHOTOMOUS KEY. • The key allow you to examine the presence or absence of a feature in order to determine the type of species that you are looking at.

More Related