Today’s Plan: 10/20/09 • • • • • Bellwork: Update folders (10 mins) Quiz corrections (15 mins) Classification evidence activity (30 mins) Begin Notes (if time) Pack/Wrap up (last 5 mins) Today’s Plan: 10/21/09 • Bellwork: Classification Notes (25 mins) • Salamander Key (30 mins) • Pack/Wrap-up (last few mins of class) Today’s Plan: 10/22/09 • • • • • Bellwork: Classification pop quiz (15 mins) Go over pop quiz (15 mins) Menu (50 mins) Finish Notes (15 mins) Pack/Wrap-up (last few mins of class) Today’s Plan: 10/23/09 • Bellwork: Vocab Quiz 9 and Blue Diamond #5&6 (35 mins) • Finish Menu (the rest of class) • Pack/Wrap-up (last few mins of class) Today’s Plan: 10/26/09 • Bellwork: Test Q&A (15 mins) • Unit 4 Test (as needed) • If you finish early, work on missing tasks, finish the menu, or the next HW (The rest of class) • Pack/Wrap-up (last few mins) Questions Pre-assessment Instructions: • Read each question carefully and do the following: – Identify the concept being tested by the question – Put the question in your own words – Ask the question a different way – Answer the question Classification Quiz • The steps of the classification scheme, in order, are: • Who has more in common, organisms in the same Family or in the same order? • Members in the same Class must also belong to the same (Phylum, Genus, or Order) • A group of related classes is: • Write your name as if it were a scientific name. Notes on Classification • Taxonomy=The science of Classification • Taxonomy has always been of interest to people trying to understand the natural world • Aristotle-1st classification scheme which had 2 groups-plants and animals. Each group also had a subgroup based on where they lived. • What are the problems with this scheme? Carl von Linnae • Swedish aristocrat-very interested in plants and had A LOT of time on his hands. • Became not only interested in classifying, but also in a common naming system that anyone could understand. • Came up with Binomial Nomenclature (Bi=2, Nom=Name, clature=system-you can do the rest) using Latin Names • Became a celebrity-his house is still a tourist attraction. • Because of his fame and love for latin, changed his name to Carolus Linnaeus How does Binomial Nomenclature work? • Modern classification uses KPCOFGS (you know what these are;-) • The Scientific, Binomial name, is simply the last two names from the classification scheme written as follows: • Genus species or sometimes: G. species • Notice, the first name is ALWAYS capitalized, and the last is ALWAYS lower case. Also, the whole thing is italicized OR underlined. The 6-Kingdoms • • • • • • • Archaebacteria Eubacteria Protista Fungi Plantae Animalia You should identify the main characteristics of each. Modern Classification Example • • • • • • Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates Family: Hominidae Genus: Homo (notice the italics and capitalization!) • Species: sapiens • Guess the mystery animal!!!!!!! Modern Classification • The overall goal of classification is to determine evolutionary relationships and group closely-related individuals • This used to be accomplished using characteristics, however, since times have changed, we now examine DNA to find relationships Cladograms and Phylogenetic trees • Cladogram-.graphic representation of the evolutionary relationships between species. Different from a phylogenetic tree in that each split only branches into two (bifurcation), and based on a derived character. • Phylogenetic Tree-graphic representation of a classification system based on evolutionary relationships and when things evolved. • See overhead for examples Test Topics (DK, K, R) • • • • • • • Early classification Schemes Aristotle and Linnaeus Modern classification scheme Methods of classification Dichotomous keys Cladograms and Phylogenetic Trees Constructing Cladograms based on amino acid sequence Self-evaluation • Figure out your score without extra credit and compare it to your score with. Are you surprised at the difference? Why or why not? • Did you actually use your study plan to prepare for this test? If so, do you think that you need to change it? How? • Thinking about your quiz scores for this past unit, would you say that you improved on this test? • What will you do next time to improve your grade or keep a good grade?