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Phylogenies and Tree-Thinking. by David Baum & Susan Offner The American Biology Teacher April, 2008 PowerPoint presentation compiled by Larry Flammer, ENSI webmaster

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Phylogenies and tree thinking l.jpg

Phylogenies and Tree-Thinking

by David Baum & Susan Offner

The American Biology Teacher

April, 2008

PowerPoint presentation compiled by Larry Flammer, ENSI webmaster

From Phylogenies & Tree-Thinking. David A. Baum and Susan Offner. The American Biology Teacher, 70(4), 222-229. With the kind permission from the National Association of Biology Teachers and David Baum.


Figure 1 hypothetical genealogy of local population of plants l.jpg
Figure 1Hypothetical genealogy of local population of plants



Slide4 l.jpg
Fig. 3. Tree diagram is meant to represent an actual history of evolutionary lineages that have branched over time


Fig 4 four trees all depict same evolutionary history l.jpg
Fig. 4. Four trees, all depict of evolutionary lineages that have branched over timesame evolutionary history


Fig 5 some important terms used to describe phylogenetic trees l.jpg
Fig. 5. Some important terms used of evolutionary lineages that have branched over time to describe phylogenetic trees


Fig 6 how to read a tree in terms of evolutionary relationships l.jpg
Fig. 6. How to read a tree in terms of of evolutionary lineages that have branched over timeevolutionary relationships


Fig 7 three trees all depict the same evolutionary history l.jpg
Fig. 7. Three trees, all depict the same of evolutionary lineages that have branched over timeevolutionary history


Fig 8 a clade includes all and only the descendants of a paticular ancestor l.jpg
Fig. 8. A of evolutionary lineages that have branched over timeclade includes all and only the descendants of a paticular ancestor


Fig 9 how trees show evolutionary history l.jpg
Fig. 9. How trees show evolutionary history of evolutionary lineages that have branched over time


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