SC.6.L.15.1 Analyze and describe how and why organisms are classified according to shared characteristics with emphasis on the Linnaean system combined with the concept of Domains. Essential Question: What are the different characteristics that can be used to classify life?

Bell Ringer Sample Item 28 SC.6.L.15.1 Mushrooms, bread molds, and yeasts are classified together in the fungi kingdom. Specific characteristics are used to classify these organisms. Which of the following is a characteristic used to classify these organisms as fungi? They are parasites. They are unicellular. They are prokaryotes. They are heterotrophs. Answer : D

Get Your Notebook Ready!!

Discovery Education Videos Overview of Classification Classifying Humans

Domain: The highest and most general classification in the hierarchy of life Domain Archaea Domain Bacteria Domain Eukarya

Domain Archaea Archaea is latin for OLD! (Oldest Life) Prokaryote = NO Nucleus! / Single Celled Found in EXTREME environments where no other life can exist: Salty High heat Acidic EXAMPLE: Halobacteria can live in extremely salty conditions.

Found as Rods/Spheres/Spirals Prokaryote = NO Nucleus! / Single-Celled Domain Bacteria Found as Rods/Spheres/Spirals Prokaryote = NO Nucleus! / Single-Celled Found (almost) everywhere on Earth EXAMPLE: E. Coli is a potentially harmful strain.

Domain Eukarya Most species of life are in this domain. Eukaryotic = has a nucleus and organelles. Most organisms you can see are in this domain. Divided up into KINGDOMS (you need to know these four): Protista Fungi Animal Plant

Domain= Eukarya Kingdom=Protista Single Celled Eukaryotic Organisms Eukaryotic = has nucleus and organelles. Can eat others or photosynthesize. EXAMPLES: Slime Mold, Amoeba https://www.youtube.com/watch?v=pvOz4V699gk

Domain= Eukarya Kingdom=Fungi Single or Multicellular Eukaryotic, has a cell wall. Nutrients from decaying matter (heterotroph) EXAMPLES: Mold Mushrooms

Domain= Eukarya Kingdom=Plantae Multicellular Eukaryotic Organisms Has a cell wall. Makes own food = PHOTOSYNTHESIS (Autotroph) EXAMPLES: Trees Moss Ferns

Domain= Eukarya Kingdom=Animalia Multicellular Eukaryotic Organisms No cell wall. Has Cell Membrane HETEROTROPHS= must eat other things for food. EXAMPLES: Humans Insects Birds Fish

Binomial nomenclature Translation: Two-named naming system What is this called? Horse Caballo Cavallo Cheval Scientific Names: Genus Name, species name Horse: Equus caballus Humans: Homo sapiens Cats: Felis catis Dogs: Canis lupus Why do Scientist classify living things? Classification provides scientists and students a way to sort and group organisms for easier study. * There are millions of organisms on the earth! (approximately 1.5 million have been already named) Ask: What is the main benefit of using scientific names instead of common names? Answer: They are all correct! So, by using a scientific name, we can all speak the same language!

How do we decide where to put newly discovered organisms? By similar characteristics. By their food source: Autotrophs make their own food. Heterotrophs have to eat other living things for food.

We Do (Collaborative Work)

Revisiting the Bell Ringer Sample Item 28 SC.6.L.15.1 Mushrooms, bread molds, and yeasts are classified together in the fungi kingdom. Specific characteristics are used to classify these organisms. Which of the following is a characteristic used to classify these organisms as fungi? They are parasites. They are unicellular. They are prokaryotes. They are heterotrophs. * Answer : D

You DO time!

You Do Question #1 In Kingdom Animalia, there are is a wide variety of organisms such as humans, reptiles, fish, birds, insects, and mammals. These organisms are different from each other in many ways. Why would scientists classify all of these organisms into the same Kingdom?  They are parasites. They are unicellular. They are prokaryotes. They are heterotrophs. Correct Answer: D

You Do Question #2 What is the main benefit of using scientific names instead of common names for organisms? Scientific names give everyone a shared terminology while common names can vary. Scientific names have been around for much longer than common names have. Scientific names include a code for classification while common names do not. Scientific names are more descriptive than common names for an organism. Correct Answer: A

You Do Question #3 Jose’s teacher gave him the chart below. The chart describes characteristics of four different types of organisms. Based on the table, which of the following organisms is most likely a member of Kingdom Protista? Organism 1 Organism 2 Organism 3 Organism 4 Organism Multicellular? Nucleus? Food Source 1 Yes Photosynthesis 2 No Eats other organisms or Photosynthesis 3 Eats other organisms 4 Correct Answer: B

Exit Slip (On Handout) What are the different characteristics that can be used to classify life?