Download
1 / 26
260 likes | 262 Views
This presentation explains the process of classification and how it helps scientists in identifying and categorizing organisms. It covers the seven levels of classification, scientific names, and the use of dichotomous keys.
E N D
How to Use This Presentation • To View the presentation as a slideshow with effects select “View” on the menu bar and click on “Slide Show.” • To advance through the presentation, click the right-arrow key or the space bar. • From the resources slide, click on any resource to see a presentation for that resource. • From the Chapter menu screen click on any lesson to go directly to that lesson’s presentation. • You may exit the slide show at any time by pressing the Esc key.
Resources Bellringers Chapter Presentation Transparencies Standardized Test Prep CNN Videos
Chapter C9 Classification Table of Contents Section 1Sorting It All Out Section 2The Six Kingdoms
Chapter C9 Section 1Sorting It All Out Bellringer Think about the different ways humans classify things. In your science journal, list at least five things that humans classify.
Chapter C9 Section 1Sorting It All Out Objectives • Explain how to classify organisms. • List the seven levels of classification. • Explain scientific names. • Describe how dichotomous keys help in identifying organisms.
Chapter C9 Section 1Sorting It All Out Why Classify? • Answering Questions The classification of living things makes it easier for biologist to answer many important questions such as: 1. How many known species are there? 2. What are the defining characteristics of each species? 3. What are the relationships between these species?
Classification: is putting things into orderly groups based on similar characteristics.
Chapter C9 Section 1Sorting It All Out How do Scientists Classify Organisms? • Classification Today Taxonomists use the seven-level system to classify living things based on shared characteristics.
Brainstorm for similarities and differences between those phones
Branching Diagrams On a branching diagram, several characteristics are listed along the line that points to the right. Each characteristic is shared by the animals to the right of it.
Chapter C9 Section 1Sorting It All Out
Chapter C9 Section 1Sorting It All Out Levels of Classification • Kingdoms and Beyond The seven levels of classification are: 1. Kingdom 2. Phylum 3. Class 4. Order 5. Family 6. Genus 7. Species
Chapter C9 Section 1Sorting It All Out
Chapter C9 Section 1Sorting It All Out Scientific Names • One Species, One Name A scientific name is always the same for a specific kind of organism no matter how many common names there might be. • Two-Part Names The first part of a species’s name is the genus name. It is always capitalized. The second part of the name is the species name.
Chapter C9 Section 1Sorting It All Out Dichotomous Keys • What Is a Dichotomous Key? A dichotomous key is an identification aid that uses sequential pairs of descriptive statements. • Two-Part Names By working through the statements in a dichotomous key in order, a person can eventually identify an unknown organism.
Chapter C9 Section 1Sorting It All Out
Chapter C9 Section 1Sorting It All Out A Growing System • Still Discoveries to Make People are still discovering and classifying organisms. • Discovery Unique Organisms Sometimes new organisms are found that are so different from other known organisms that new classes, phyla, and so on must be formed.
Chapter C9 • Symbionpandora • Scientists found S. pandoraliving on lobster lips! • Scientists learned that S. pandorahad some characteristics that no other known organism had. • In fact, scientists trying to classify • S. pandorafound that it didn’t fit in any existing phylum. • So, taxonomists created a new phylum for S. pandora.
Chapter C9 Classification Concept Map Use the terms below to complete the concept map on the next slide.
Chapter C9 Classification
Chapter C9 Classification
