Presentation on theme: "Classification System Dichotomous Key with Harry Potter"— Presentation transcript:
1 Classification System Dichotomous Key with Harry Potter TaxonomyClassification SystemDichotomous Keywith Harry PotterMagic wand on this slideWith some magic sparkle
2 What are common names for this animal? Puma, cougar, mountain lion, panther
3 What are common names for this animal? Buzzard vs hawk vs falcon
4 Common Names Can be misleading CrayfishCatfishSilverfish
5 classifying organisms & giving them a universally accepted name Taxonomy:classifying organisms & giving them a universally accepted nameLets classify some goblins!
6 Classifying both living and nonliving things, so that we better understand the world around usWho was the first to create a system in the science world? boogerPlant lady professor hufflepuff
7 Who was the first to create a system in the science world? Carolus LinnaeusBotanist & Father of taxonomygave them all Latin namesCame up with the system in the 1700s that is still used todayTaxonomy: think teachers versus “science teachers” or biology teachersWizard hat on linnaeus
8 Linnaeus’s System of Classification Organisms are classified by their: * physical structure (how they look) * evolutionary relationships (phylogeny) * genetic similarities (DNA)* biochemical similarities biochemistry: structure and function of cellular components such as proteins, carbohydrates, lipids, nucleic acids and other biomolecules.
9 Professor Linnaeus Binomial nomenclature: each species is assigned a two-part scientific nameTwo-part: Genus & SpeciesWhat is a species?Genius!!
10 Binomial nomenclature Scientific name is always written in italicsFirst letter in the first word is CAPITALIZEDSecond is lowercasedUrsus arctos Ursus maritimusAdd picture of grizzly and polar bearAsk students: what do you see, by looking at these two scientific name do you think these two animals are related?
11 The categories to classify Organisms Hierarchical classification:Broad specificKingdomPhylumClassOrderFamilyGenusSpeciesBinomial name
12 Harry Potter Classification HogwartsHouses: Slytherin, Hufflepuff, Ravenclaw, GryffindorYear: 1st, 2nd, 3rd, etc.Student: Harry, Ron, HermioneHarry Potter:Organisms are first classified from broader categories, then are divided into more specific/similar subgroups
14 Dichotomous KeyDichotomous Keys use Taxonomy to identify the species name by the organisms physical attributesA step-by-step guide to identify an organismEach step gives a choice of two descriptions.The descriptions have to be oppositesEx. Leaves round vs. leaves not roundCheck out my moon walk Goblin picture “remember the goblins?”
16 Lets Classify some House Elves 8 goblinsWhy would we want to classify these goblins?Why, how, what
17 The Tree of Life evolves A. The classification has changed since Linnaeus’s time with new evolutionary findingsB. At 1st living organisms were classified as either plant or animal, today there are more precise classifications producing 6 main Kingdoms based on cell structure, # of cells, how they get their food & movement1. Eubacteria2.Archaebacteria3. Protista4. Fungi5. Plantae6. Animalia
18 3-Domain SystemA. Domain is larger than a Kingdom & separates the kingdoms into major groups1. Eukarya - protists, fungi, plants & animals2. Bacteria – eubacteria3. Archaea - archaebacteria
19 Kingdom EubacteriaProkaryotic single celled organisms that are heterotrophs (can not make own food) some can be autotrophs (make own food)Found everywhere
20 Kingdom Archaebacteria Prokaryotic single celled organisms that are heterotrophs while some can be autotrophsFound only in extreme conditions hot springs, salt brines, ocean vents
21 Kingdom ProtistaEukaryotic single celled organism that either be autotrophic or heterotrophicThere are Plant-like, Animal-like & Fungi-like