Taxonomy and Classification - Introductory Biology - Quiz, Exercises of Biology

Download Taxonomy and Classification - Introductory Biology - Quiz and more Exercises Biology in PDF only on Docsity! Biology Name: ______________________ Taxonomy and Classification Why Classify?  _________________________ million species on Earth  Less than ___ million have been identified and named  _________________, ___________________ have lots of unidentified species  Need a way to organize to make organisms easier to identify and relationships easier to understand What are Classification and Taxonomy  Classification – grouping based on __________________________  Taxonomy – branch of biology concerned with the _______________ and _________________ of organisms. History of Classification  ____________________________  First to Classify living things  Two major groups - ________________________________  Within these groups, organisms were organized based on where they lived  Doesn’t work  Some live in both land and water  Does NOT show relationships among organisms  __________________________________________  1707 – 1778  Based classification system on ____________________ characteristics  Came up with ____________________________________________  System of naming  ____ words – gives species name  Genus  Group of _____________________ related species  Second word is descriptive  Example – Homo sapiens ("wise" man); Canis domesticus Why Latin?  __________ Language  Never changes  Consistent Characteristics Used by Taxonomists to Classify Organisms  External and internal structures (___________________________)  Chemical make up  ______________________________  Proteins  Evolutionary relationships Docsity.com