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Dichotomous Key for Leaves 1. Compound or simple leaf 1a) Compound leaf (leaf divided into leaflets) go to step 2 1b) Simple leaf (leat not divided into leaflets) go to step 4 2. Arrangement of leatlets 2a) Palmate arrangement of leaflets (leaflets all attached at one central point) Aesculus (buckeye) 2b) Pinnate arrangement of leaflets (leaflets attached at several points) go to step 3 3. Leaflet shape 3a) Leallets taper to pointed tips Carya (pecan) 3b) Oval leaflets with rounded tips Robinia (locust) 4. Arrangement of leat veins 4a) Veins branch out from one central point go to step 5 4b) Veins branch off main vein in the middle of the leat. 5. Overall shape of leaf go to step 6 5a) Leat is heart-shaped.. Cercis (redbud) 5b) Leat is star-shaped VII Liquidambar (sweet gum) 6. Appearance of leat edge 6a) Leaf has toothed (jagged) edge Betula (birch) 6b) Leaf has untoothed (smooth) edge Magnolia (magnolla)

Dichotomous Key for Leaves 1. Compound or simple leaf 1a) Compound leaf (leaf divided into leaflets) go to step 2 1b) Simple leaf (leat not divided into leaflets) go to step 4 2. Arrangement of leatlets 2a) Palmate arrangement of leaflets (leaflets all attached at one central point) Aesculus (buckeye) 2b) Pinnate arrangement of leaflets (leaflets attached at several points) go to step 3 3. Leaflet shape 3a) Leallets taper to pointed tips Carya (pecan) 3b) Oval leaflets with rounded tips Robinia (locust) 4. Arrangement of leat veins 4a) Veins branch out from one central point go to step 5 4b) Veins branch off main vein in the middle of the leat. 5. Overall shape of leaf go to step 6 5a) Leat is heart-shaped.. Cercis (redbud) 5b) Leat is star-shaped VII Liquidambar (sweet gum) 6. Appearance of leat edge 6a) Leaf has toothed (jagged) edge Betula (birch) 6b) Leaf has untoothed (smooth) edge Magnolia (magnolla)

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Dichotomous Key for Leaves 1. Compound or simple leaf 1a) Compound leaf (leaf divided Into loaflets) go to step 2 1b) Simple leaf (leat not divided into leaflets) go to step 4 2. Arrangement of leatlets 2a) Palmate arrangement of leaflets (leaflets all attached at one central point) Aesculus (buckeye) 2b) Pinnate arrangement of leaflets (leaflets attached at several points) go to step 3 3. Leaflet shape 3a) Leaflets taper to pointed tips Carya (pecan) 3b) Oval leaflets with rounded tips IV Robinia (locust) 4. Arrangement of leat veins 4a) Veins branch out from one central point go to step 5 4b) Veins branch off main vein in the middle go to step 6 of the leat. 5. Overall shape of leat 5a) Leat is heart-shaped.. Cercis (redbud) 5b) Leat is star-shaped VII Liquidambar (sweet gum) 6. Appearance of leat edge 6a) Leaf has toothed (jagged) edge Betula (birch) 6b) Leaf has untoothed (smooth) edge Magnolla (magnolia)
Transcribed Image Text:Dichotomous Key for Leaves 1. Compound or simple leaf 1a) Compound leaf (leaf divided Into loaflets) go to step 2 1b) Simple leaf (leat not divided into leaflets) go to step 4 2. Arrangement of leatlets 2a) Palmate arrangement of leaflets (leaflets all attached at one central point) Aesculus (buckeye) 2b) Pinnate arrangement of leaflets (leaflets attached at several points) go to step 3 3. Leaflet shape 3a) Leaflets taper to pointed tips Carya (pecan) 3b) Oval leaflets with rounded tips IV Robinia (locust) 4. Arrangement of leat veins 4a) Veins branch out from one central point go to step 5 4b) Veins branch off main vein in the middle go to step 6 of the leat. 5. Overall shape of leat 5a) Leat is heart-shaped.. Cercis (redbud) 5b) Leat is star-shaped VII Liquidambar (sweet gum) 6. Appearance of leat edge 6a) Leaf has toothed (jagged) edge Betula (birch) 6b) Leaf has untoothed (smooth) edge Magnolla (magnolia)
Remember that every option branches into two new options only, and that you want to avoid redundance in statements. In cases where a key refers to the presence or absence of a trait, one may use yes/no statements. However, the presence or absence of a trait may not necessarily be the case for this key, in which case you will find using descriptive statements more logical than using yes/no statements (you will have to figure out what works best).
Transcribed Image Text:Remember that every option branches into two new options only, and that you want to avoid redundance in statements. In cases where a key refers to the presence or absence of a trait, one may use yes/no statements. However, the presence or absence of a trait may not necessarily be the case for this key, in which case you will find using descriptive statements more logical than using yes/no statements (you will have to figure out what works best).
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