1. Add to table of contents: Embryology Pg. 62 Evidence of Evolution Pg. 63

3. 1) Adaptations – traits that help an organism survive. Look at the picture above. What are some adaptations of this bass?

5. 2) Homologous structures = Similar structures that can have different functions. They tell us about the history of the species. (common ancestor)

6. Salamander, Lizard, Turtle, and Opossum

8. 3) Analogous Structures = Similar in function but are different in structure. ( shows no common evolutionary origin – ex bird and fly wings)

10. 4) Vestigial structures = No known function but was probably useful to an ancestor.

11. Examples of Vestigial Structures: Wisdom teeth. Ear muscles. Appendix in a human. Human tailbone. Eyes on blind cave fish. Muscles to make hair stand up.

12. 5) DNA(Moleucular biology)- similarity and differences. CAT TAC DNA is made of the same building blocks just in a different order – DNA in a human could be AATGGGCCC TTACCCGGG – DNA in a tree could be AAGTTTAGC TTCAAATCG

13. 6) Embryos-show how animals are related by common ancestry, but developed different structures. – Earliest stage of growth and development in both plants and animals Very similar embryo’s in Fish, Reptiles, Birds, and Mammals

14. 7. Biogeography-Study of plants & animals over Earth’s surface. -Compares modern organisms to the fossils found there.

15. 8) Fossil Record-shows evolution