1. Phylogeny

2. Phylogeny The evolutionary history of a group of organisms
A phylogenetic tree is used to show the evolutionary relationships among groups of organisms
The base of the tree represents the oldest common ancester
The tips of the tree represent the present-day species
Forks represent the points at which an ancestral species split into two species

3. Leopard
American badger
European otter
Coyote
Gray Wolf

4. Types of evidence used in creating phylogenic trees:
Anatomy (e.g. fossils)
Development (e.g. early embryonic development)
Biochemistry (e.g. protein analysis)
DNA (e.g. nucleotide sequencing)
Homologous features

5. Homework P. 409 #1-4, 7,11,12,15 Diversity Stations
Refeference p
Insect Assignment (Mon. Sept 26)
Study for Taxonomy Quiz (Wednesday)