1. _______________________________ is a change in species over time. 2. Since the beginning of the earth, about ______________ years ago, it has gone through many changes. 3. ________________________________ do not believe that species change slowly. 4. Before his 5 year voyage on the __________, Darwin believed in creationism (he had a theology degree). 5. Darwin conducted much of his research at ________________________________. 6. Darwin’s 1859 book outlining the idea of evolution was ______________________________. 7. Darwin’s book expressed 2 main ideas: 1) species change over time 2) this change occurs by ___________. 8. Darwin’s theory of evolution stated that species ____________________________. 9. Darwin’s theory of evolution stated that evolution occurs due to ________________________________. 10. Darwin’s theory of evolution stated that organisms reproduce __________________________________. 11. Darwin’s studies included __________, who had a common ancestor, but had evolved differently. 12. Radioactive substance have a characteristic known as ______; the _______ of carbon-14 is 5730 years. 13. Evidence for evolution includes: __________________________________________________ 14. Darwin predicted that we’d find __________________ to show intermediate stages in the fossil record. 15. A bone becomes fossilized when its _____________________ is replaced by harder minerals. 16. The fossil record of the ________________ begins with a small dog-sized creature of 60 million years ago and progresses through a series of intermediate organisms that lead to the modern _____________. 17. Using relative dating methods, fossils found deeper in the ground are considered to be _____________. 18. ________________________ structures in organisms suggest that organisms had a common ancestor. 19. Similar structures may develop by ______________________ in species that are NOT closely related. 20. An example of divergent evolution is ___________________________. 21. _________________________ are features that have become smaller (and unused)as the years have gone. 22. Examples of vestigial structures are _________________________________. 23. Before Darwin had even thought about evolution, ______________________ theorized (1828) that the closer two species are related, the more similar their development. 24. Most vertebrate embryos _______________________________ at the beginning of their formation. 25. A human embryo exhibits gill pouches, a coat of fine fur, and a _________ for a certain amount of time. 26. Human embryos will resemble ________________________ embryos for the longest period of time. 27. As organisms are more similar, their amino acid sequences in their proteins are _________________. 28. If species have changed over time, their genes will have _________________________________. 29. As organisms are more similar, their nucleotide sequences are ______________________________. 30. Our closest relative in the animal kingdom is the __________, whose DNA is 97-99% the same as ours. 31. Mouse DNA is _______________________ the same as humans. Evidence for Evolution Notes |