1. Darwin’s Theory of Evolution The Puzzle of Life’s Diversity Chapter 15-1 Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006

2. WRITE A DEFINITION: change over time; the process by which modern organisms have descended from ancient organisms a well-supported testable explanation of phenomena that have occurred in the natural world the preserved remains of ancient organisms ________________ : _______________ _______________ :

3. The total variety of all the organisms in the biosphere = ________________ Where did all these different organisms come from? How are they related? REMEMBER ! http://www.millan.net

4. What scientific explanation can account for the diversity of life? ANSWER: A collection of ______________, __________, and ___________ known as ________________________

5. The person who contributed the most to our understanding of evolution was ______________________ In 1831, at age 22, he joined the crew of the _______________ as a naturalist for a ________ voyage around the world. http://harrier.users.netlink.co.uk/Darwin_sm.jpg Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006

6. During his travels, Darwin wrote thousands of pages in his journals, drew pictures of the things he saw, and collected a vast amount of ______________ that led him to propose a _______________________ about the way _____________. http://www.elsie.brandeis.edu/images/journals.gifhttp://www.24hourmuseum.org.uk/chg/content/images/2003_2233.JPG

7. DARWIN WONDERED? Wy do Argentina and Australia have ________ ______ even though they have ________ grassland ____________? Why are there no ______ in Australia and no ________ in England? Why have so many species disappeared? How are these ______ species related to living species? http://www.rc.umd.edu/praxis/mitchell/images/dinosaur1.gif

8. Who Was Charles Darwin? While on his voyage around the world aboard the ____________, Charles Darwin spent about one month observing life on the ____________________. There, he encountered some unique animals, such as _______ and _________. http://www.darwinadventure.com/pictures/galapagos_giantortoise.jpg http://mikebaird.com/ecuador/images/galapagos_off_ecuador_ng_map.jpg

9. The Galάpagos Islands are close together but have very different ________. Some were hot and dry, with little vegetation. Others had more rainfall and were rich in vegetation Each island had its own ______ _________ of plant and animal species. Biology by Miller and Levine; Prentice Hall Publishing©2006

10. Go to Section: Pinta Island Intermediate shell Pinta Isabela Island Dome-shaped shell Hood Island Saddle-backed shell Hood Floreana Santa Fe Santa Cruz James Marchena Fernandina Isabela Tower Giant Tortoises of the Galápagos Islands Section 15-1 On the desert-like Hood Island, tortoises had long necks… …while on the lush rainforest of Isabela Island, tortoises had short necks… and on Pinta Island, tortoise necks were somewhere in between

11. After his voyage, Darwin spent a great deal of time thinking about his findings. He began to wonder if animals living on different islands had once been members of the ______________ that had developed___________ characteristics after becoming ________ from one another in different habitats. Biology by Miller and Levine; Prentice Hall Publishing©2006

12. Darwin’s Theory of Evolution Ideas that Shaped Darwin’s Thinking Chapter 15-2 Image from: Biology by Miller and Levine; Prentice Hall Publishing©2006

13. Ideas that shaped Darwin’s thinking: In 1785 ______________ proposes that the EARTH was ________ by _________________ occurring over __________ periods of time, and is _______________ old. http://www.creationism.org/books/TaylorInMindsMen/TaylorIMMc03.htm

14. Ideas that shaped Darwin’s thinking: In 1833 _______________ explains that the geological processes still ___________ have shaped Earth’s features over _________________ http://www.biologydaily.com/biology/Sir_Charles_Lyell

15. Ideas that shaped Darwin’s thinking: http://wrgis.wr.usgs.gov/docs/usgsnps/animate/A08.gif SINCE THEN _____________________ _____________________

16. Living things must compete for food, shelter, space, mates REMEMBER ! Chapter 3 http://www.wasatchcomputers.net/gallery/elk_fight.jpg _____________________

17. Ideas that shaped Darwin’s thinking: __________________ He observed that babies were being born faster than people were dying. He reasoned that if the human population continued to grow, sooner or later there would be __________________________ http://www.nndb.com/people/250/000024178/malthus.jpg

18. Ideas that shaped Darwin’s thinking: __________________ was one of first scientists to recognize living things ________________ and that all species were ___________ from other species. Lamarck published his hypothesis of _________________________________ the year Darwin was born. http://www.educa.rcanaria.es/fundoro/00.corsi.htm

19. The male fiddler crab uses its front claw to _________mates and fight off _____________. Through _________ use, the front claw becomes ________. The fiddler passes on this __________ characteristic to its offspring

20. What’s wrong with Lamarck’s hypothesis? Lamarck didn’t know about genes and how traits are _______. If you lifted weights your whole young adult life, and then you had children, would your kids be more muscular? NO! ________ traits can ____ be __________ to their offspring. http://www.geocities.com/arnold_schwarzenegger_pictures/

21. What’s right with Lamarck’s hypothesis? Lamarck was first to develop a scientific hypothesis about ______________ and recognize that organisms are ___________________________ http://pegasus.cc.ucf.edu/~he599900/giraffeeating.jpg

22. a.The earth is really old, and slowly changes b.Living things pass acquired changes on to their offspring c.Sooner or later growing populations run out of resources d.Living things change slowly over time because of competition for resources, and pass those changes on to their offspring Hutton Lyell Malthus Lamarck Match the letter of the idea with the man or men who proposed it:

23. Go to Section: Concept Map Section 15-3 includes Evidence of Evolution which is composed ofwhich indicateswhich implies