Lesson 3 Classification Quiz on Thursday Lesson 2
Log: Aug 24th What is Binomial Nomenclature? Why do biologist classify organisms?
Classifying Life Why Do Biologist Classify Organisms? Lesson 2 Classifying Life Why Do Biologist Classify Organisms? What Are the Levels of Classification? How Are Taxonomic Keys Useful?
Lesson 3 Classification The process of grouping things based on their similarities Taxonomy – the scientific study of how organisms are classified
Lesson 3 Classification Why Classify? Answering Questions The classification of living things makes it easier for biologist to study organisms answer many important questions such as: 1. How many known organism are there? 2. What are the defining characteristics of each organism? 3. What are the relationships between these organisms?
Binomial nomenclature (two names) Lesson 3 Classification Binomial nomenclature (two names) Carolus Linnaeus a Swedish botanist created the system 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. Common Names Mouse Mus musculus Tiger Panthera tigris
Binomial nomenclature Lesson 3 Classification Binomial nomenclature Two-Part Names The first part of a organisms name is the genus name. It is always capitalized. The second part of the name is the species name. Both words are italics Felis domesticus (house cat) Questions What genus is the house cat in? What species?
How do Scientists Classify Organisms? Lesson 3 Classification How do Scientists Classify Organisms? Classification Today Taxonomists use the eight-level system to classify living things based on shared characteristics.
Classifying Life Aristotle and Classification (Look at page 17) Aristotle, an ancient Greek scholar, developed a classification system for animals.
Classifying Life Levels of Classification Domain Eukarya Kingdom Animalia Levels of Classification The number of organisms on each level decreases as the levels of classification get lower and the organisms share more characteristics with each other, and are related. Phylum Chordata Class Aves Order Strigiformes Family Strigidae Genus Bubo Species Bubo virginianus
Levels of Classification Lesson 3 Classification Levels of Classification Kingdoms and Beyond The eight levels of classification are: 1. Domain 2. Kingdom 3. Phylum 4. Class 5. Order 6. Family 7. Genus 8. Species Try to come up with a saying to help you remember the order.
A Growing System Lesson 3 Classification 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.
Dichotomous or Taxonomic Keys Lesson 3 Classification Dichotomous or Taxonomic Keys What Is a Dichotomous Key? A dichotomous key is a tool for identifying organisms that uses a series of paired descriptive statements. Two-Part Names By working through the statements in a dichotomous key in order, a person can eventually identify an unknown organism.
Classifying Life Identifying Organisms The six paired statements in this taxonomic key describe physical characteristics of different organisms.
Review and reinforce Time
Define prokaryote, eukaryote, nucleus P 23 Chapter 1 Lesson 3 Domains and Kingdoms Log: Aug.26th Define prokaryote, eukaryote, nucleus P 23 Wk 25d change directions on vocab to write a sentence using vocab. Use context clues to define vocabulary
Chapter 1 Lesson 3 Domains and Kingdoms Objective How are organisms classified into Domains and kingdoms?
My Planet Diary pg. 22 Domains and Kingdoms The table shows the number of species of bees, mammals, and birds that scientists have found so far!
Chapter 1 Lesson 3 Domains and Kingdoms What Is It? What Is Used to Classify Organisms? Organisms are classified by their characteristics. Cell type Ability to make food Number of cells in organism Adding New Classification Categories As scientists continue to learn about living things, they add classification categories that account for the characteristics of different organisms.
Domains and Kingdoms Three Domains of Life Bacteria and Archaea are unicellular organisms that have no nucleus. Organisms with cells that contain nuclei are called Eukarya.
The Domain Archaea Chapter 1 Lesson 3 Domains and Kingdoms The Domain Archaea Archaea are one of two kinds of prokaryotes. Prokaryotes are single-celled organisms that do not have a nucleus. Nucleus contains the cells nucleic acid (instructions for cells) Most are known to live in extreme environments. Greek prefix = ancient * Yellowstone National Park, hot springs 900 C hot conditions
The Domain Bacteria Chapter 1 Beneficial to humans: Lesson 3 Domains and Kingdoms The Domain Bacteria Bacteria are another kind of prokaryote. Can be found in soil water Beneficial to humans: Produce vitamin K in our intestines Milk to yogurt Milks to cheese Harmful to humans: Ear and sinus infections Skin infections
The Domain Eukarya Chapter1 Lesson 3 Domains and Kingdoms The Domain Eukarya All organisms are eukaryotes (contain nucleus) The Kingdoms Protists Fungi Plants Animals
Chapter1 The Kingdom Protista Lesson 3 Domains and Kingdoms The Kingdom Protista Today members of the kingdom Protista commonly called protists, Are single-celled or simple multicelluar organisms. Heterotroph or autotrophs Protista contains many kinds of organisms, including protozoans, algae, seaweed
Chapter 1 The Kingdom Fungi Lesson 3 Domains and Kingdoms The Kingdom Fungi Molds and mushrooms are examples of the complex, multicelluar members of the kingdom Fungi. Some are unicellular (yeast) Fungi are Heterotrophs. Fungi absorb nutrients from substances in their surroundings.
The Kingdom Plantae Chapter 1 Plantae consists of organisms that are Lesson 1 Domains and Kingdoms The Kingdom Plantae Plantae consists of organisms that are eukaryotic, have cell walls, Autotrophs: make food through photosynthesis. Examples of Plantae Sequoia trees, roses, grasses, ferns, and more are all examples of members of the kingdom Plantae.
The Kingdom Animalia Chapter 9 Animals The kingdom Animalia contains Section 2 Domains and Kingdoms The Kingdom Animalia Animals The kingdom Animalia contains complex multicellular organisms that don’t have cell walls are usually able to move around have specialized sense organs. All are Heterotrophs Examples of Animalia Ants, beetles, lizards, fish, birds, apes, elephants, and more are all examples of members of the kingdom Animalia. Simple Animals Most animals are able to move, but sponges, a simple animal, cannot move.
What 3 criteria are evaluated to place organisms into Domains and Kingdoms
Log: Aug 30th What is a taxonomic key? What is a dichotomous key?
Log: Sept 1st Which 3 characteristics are used to place organism into Domains and kingdoms?
Chapter 9 Classification Concept Map Use the terms below to complete the concept map on the next slide. kingdom species class classification family scientific name order taxonomy phylum
Chapter 9 Classification
Chapter 9 Classification
End of Chapter 9 Show