Welcome to Class Define the patterns of evolution.

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Presentation transcript:

Welcome to Class Define the patterns of evolution.

Agenda Phylogenetic tree notes Why Evolution matters video Review

Phylogenetic Tree

What is a Phylogenetic Tree? A branching diagram showing evolutionary relationships among species based on similarities and differences in physical and/or genetic characteristics

Uses of Phylogenetic Trees Organize knowledge of biological diversity, Structure classifications, Providing insight into events that occurred during evolution. Trees show descent from a common ancestor

This tree shows that gibbons diverged before other primate groups. Chimps and humans diverged last.

Species Number of differences from human cytochrome c Monkey1 Rabbit4 Horse6 Chicken7 Frog8 Turtle8 Tuna13 Shark14

Why does evolution matter now?