1. Phylogenetic Tree

2. Vestigial Structures https://www.youtube.com/watch?v=rFxu7NE oKC8 https://www.youtube.com/watch?v=rFxu7NE oKC8

3. Do Now 3/22/16 Phylogenetic Tree What is the purpose of using phylogenetic trees when studying evolution?

4. Phylogenetic trees A diagram that represents the classification of organisms by their evolutionary relationships.

5. Phylogenetic Tree Based off of Linnaeus' system – Taxonomic category – Binomial nomenclature Italicized: Genus species Uses homologous structures as clues to assess how closely related organisms are Molecular data has provided new ideas and ways to test hypotheses – Comparing species DNA – Example: red panda & panda bears

6. Phylogenetic Tree Linneau’s system – KPCOFGS

7. Phylogenetic Tree

8. Phylogenetic trees Key feature – Pattern of branches – Clades = each branch is a clade Nest within larger clades Each item in a clade may be a species, a genus or a family Every clade consists of an ancestral species and all of its descendants