PPT-Classification Using a Dichotomous Key

Mr Jones 6142013 Common Core RST683 Follow precisely a multistep procedure when carrying out experiments CA Science Standard 3d Students know how to construct a simple branching diagram to classify living . . Dichotomous Key. What: A dichotomous key is a series of questions, each with only two answers. . Who: Scientists. Where: All over the World. When: If you need to identify an unknown organism. Why: To help identify an organisms genus and species. TEKS 7.11A . Examine organisms and use dichotomous keys for identification. DICHOTOMOUS KEYS. A dichotomous key is a device that can be used to easily identify an unknown organism. . DICHOTOMOUS KEYS. We… . 1. st. : Classify the organisms in genres?. 2. nd. : . Discover . Evolutionary Relationships?. Evolution: Classification. Phylogeny. Cladistics. Dichotomous . Keys. Classification. How do scientists classify &identify organisms?. Horticulture. Word first used in 1600. ’. s. Comes from two Latin words. Hortus. . “. Garden. ”. Cultura. . “. Cultivation. ”. Horticulture means . “. cultivated garden. ”. or . “. We… . 1. st. : Classify the organisms in genres?. 2. nd. : . Discover . Evolutionary Relationships?. Evolution: Classification. Phylogeny. Cladistics. Dichotomous . Keys. Classification. How do scientists classify &identify organisms?. Standard: SB3 Classification and diversity. EQ: How do we classify things?. . Write down as many things or areas that you can classify at school; in the classroom; in the gym; at home. . Eg. . Types of clothes, color of shoes, sports equipment, cars, etc.. http://nationalzoo.si.edu/Education/ConservationCentral/walk/walk4.html. Trees. 1). 2). 3). 4). Directions:. After visiting the “Virtual Dichotomous Key Activity” website (previous slide), document the names of each tree. Be sure to look at the previous slide to see what number corresponds to which tree on the website. Your answers can be . latin. or . greek. names for organisms (which can be hard to remember/understand). Wouldn’t it be easier simply to refer to their common name? . Finding order in diversity. Section 18.1. How are scientific names assigned? . Please sit down if you:. Are taller than 5’9”. Have blonde Hair . Have brown Eyes. Are left-Handed. Why Classify?. To study the diversity of life, biologists use a . classification . system to name organisms and group them in a logical manner. Understanding:. The binomial system of names for species is universal among biologists and has been agreed and developed at a series of congresses. When species are discovered they are given scientific names . A . dichotomous key . is used to identify organisms. It consists of a series of paired statements or questions that describe alternative possible characteristics of an organism.. Binomial nomenclature. a simple classification key to identify an unknown organism. .. . Notes . Science. Success Criteria:. I will show that I understand this by classifying some. example organisms and by passing the quiz.. How . do scientists classify living organisms?. Standards:. S7L1. Obtain, evaluate, and communicate information to investigate the diversity of . living organisms . and how they can be compared scientifically.. When a biologist wants to identify a plant or animal they have found, they often use an identification key which contains the major characteristics of groups of organisms. . A . dichotomous key. is one type of identification key. The term dichotomous means "divided into two parts or categories”. .