PPT-Classification of Organisms

Dichotomous Key A dichotomous key is a method for determining the identity of something by going through a series of choices that leads the user to the correct name of the item At each step of the process of using the key the user is given . Updated: January 2015. By Jerald D. . H. endrix. Microbial Classification . and Taxonomy. Classification Systems. Levels of Classification. Definition of “Species”. Nomenclature. Useful Properties in Microbial Classification. Chapter 18.2. The Problem with the Linnaeus System. Linnaeus classified organisms based on overall similarities and differences – he did this more than a century before Darwin formulated his theory on evolution. . Finding Order in Diversity. History of Classification. For more than 3.5 billion years, life on Earth has been constantly changing.. Natural Selection has led to a staggering diversity of organisms.. Classifying Living Things . Scientists identify, define, and name species of organisms . A . species. is a group of organisms that share similar physical features, are genetically similar, and . can reproduce with one another to produce a viable offspring.. 2. There are . 13 billion. known species of organisms. This is . only 5% of all. organisms that ever lived!!!!!. New organisms. are still being found and identified. Species of Organisms. 3. What is Classification?. Domain Kingdom Phylum. . Class Order. . Family. Genus Species. . . . . . . Classification. Classification. is the grouping of things based on similar characteristics.. (chapter 18, page 446) .  . Taxonomy. is the science of classifying organisms based on their characteristics.. Why is a system of classification needed?.            a.         Organize species into groups and discuss them.. Updated: January 2015. By Jerald D. . H. endrix. Microbial Classification . and Taxonomy. Classification Systems. Levels of Classification. Definition of “Species”. Nomenclature. Useful Properties in Microbial Classification. Section 1 - Biodiversity. Biologists have named and classified almost 2 million species. They believe the total is much greater.. Various methods of classification have been used to organize their knowledge of the tremendous number of species. Species have been placed in categories based on particular characteristics.. Biosphere: All life on earth and parts of earth in which life exists (land, water and atmosphere). Studying Our Living planet. Science of Ecology. Study of interactions of living things, their surroundings or environments. Needham theorized that if he took chicken broth and heated it, all living things in it would die. . After heating some broth, he let a flask cool and sit at a constant temperature.. . Result: Lots of microorganisms grew in flask. methylation. . . Methylation. is how mercury changes into organic forms and this happens under water.. Introduction. The information our group researched is important because it tells us whether terrestrial or aquatic organisms have more mercury. Mercury can also kill many people. According to the EPA, mercury can be found in air, water and soil. Mercury is everywhere and it gets there by emissions from vehicles and emissions from factories, but the main ways are through . Standards. GSE S7L1: Obtain, evaluate, and communicate information to investigate the diversity of living organisms and how they can be compared scientifically.. GSE 7L1b: Evaluate historical models of how organisms were classified based on physical characteristics how that led to the six-kingdom system (currently archaea, bacteria, protists, fungi, plants and animals). How . do scientists classify living organisms?. Standards:. S7L1. Obtain, evaluate, and communicate information to investigate the diversity of . living organisms . and how they can be compared scientifically..