S. N. Kansagra School - Weebly

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S. N. Kansagra SchoolBiology DepartmentDichotomous Keys Using Smiley FacesInstructions: Use the key below to identify the species name of each of the smileys below.1. Teeth visible .go to 2.Teeth not visible .go to 42. Has a wide, toothy smile .Smilus toothyus.Is not smiling .go to 33. Visibly crying .Smilus dramaticus. Frowning .Smilus upsettus4. Eyes are symmetrical . go to 5.Eyes not symmetrical .go to 85. Eyes shaped like hearts . Smilus valentinus.Eyes are shaped as ovals .go to 66. Smiling, happy face . Smilus traditionalis.Not happy, frowning or other .go to 77. Mouth curved down, frowning . Smilus saddus. Mouth is a small circle .Smilus suprisus8. Has a pirate eye patch .Smilus piratus.Does not have eye patch . go to 99. One eye is much larger than the other eye . Smilus mutatusOne eye is winking .Smilus winkus. . . . . . . . .2012-13, STD 11 CLASSIFICATIONPage 1

Extension:A. The names of the smilies give you another bit of information about their taxonomy. Each of thesesmilies belongs to the same genus. What is their genus?B. Names are often given to an organism by the person who discovers it, thoughthey follow certain conventions, often they are named after the person, or wherethe organism was found, or given a name that describes the creature. Whichconvention was used in naming these smilies?C. Suppose you discovered the new smiley pictured to the right.What name would you give it?2012-13, STD 11 CLASSIFICATIONPage 2

DICHOTOMOUS KEY ON NORNSNorns belong to the genus Norno and can be divided into eight species that are generally located inspecific regions of the world. Use the dichotomos key to identify the norns below. Write theircomplete scientific name (genus species) in the blank.1. Has pointed ears . go to 3.Has rounded ears .go to 22. Has no tail . Kentuckyus.Has tail . Dakotus3. Ears point upward . go to 5.Ears point downward .go to 44. Engages in waving behavior . Dallus.Has hairy tufts on ears .Californius5. Engages in waving behavior . WalaWala.Does not engage in waving behavior.go to 66. Has hair on head . Beverlus.Has no hair on head (may have ear tufts) .go to 77. Has a tail . Yorkio.Has no tail, aggressive . Rajus2012-13, STD 11 CLASSIFICATIONPage 3

ABCDEF2012-13, STD 11 CLASSIFICATIONPage 4

Answer the following questions:1. Using the dichotomous key, classify an organism that has small or no wings, shorter rear legs, nota horned head and small eyesA) termite soldierB) grasshopperC) mosquitoD) butterfly2. Using the circular key, classify an animal with 6 legs, 4 heads, 8 eyes and no mouthA) XeroB) CaraC) FeepD) Zeep2012-13, STD 11 CLASSIFICATIONPage 5

3. Using the dichotomous key, identify the name of the cnidarian labelled C.A) Heliastra helioporaB) GorgoniaC) Astraea pallidaD) Pennatula2012-13, STD 11 CLASSIFICATIONPage 6

2012-13, STD 11 CLASSIFICATION Page 1 Dichotomous Keys Using Smiley Faces Instructions: Use the key below t

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