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Your Inner Fish by Neil Shubin Leonie Cohen Chapter 7 – Adventures in Bodybuilding 1.

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Presentation on theme: "Your Inner Fish by Neil Shubin Leonie Cohen Chapter 7 – Adventures in Bodybuilding 1."— Presentation transcript:

1 Your Inner Fish by Neil Shubin Leonie Cohen Chapter 7 – Adventures in Bodybuilding 1

2 body organ system organ tissue cellBodybuilding How? Why? Why so long? 2 Body = parts work together ◦ Division of labor (a.k.a. “Cambrian explosion”)

3 Cells: Sticking and Communicating “Stick” (pages 127,128) ◦ Molecular rivets ◦ Collagen - ECM “Talk” (page 128) ◦ Molecular signals http://wiki.pingry.org/u/ap-biology/index.php/Extracellular_matrix http://hodnett-ap.wikispaces.com/Chapter+11+Cell+Communication 3

4 Choanoflagellates [koh-uh-noh-flaj-uh-leyts] Single-celled microbes DNA of choanoflagellate ≈ DNA of sponge (pages 132-135) The potential of single-celled organisms: o Catching prey  rivets, attachments o Molecular interactions  communication Importance? 4

5 Development of Bodies Why? ◦ Predator vs. prey  Importance of size Why so long? ◦ Cost ◦ Increased oxygen – “Oxygen Catastrophe” Pages (137,138) 5 # of Billion Years Ago http://en.wikipedia.org/wiki/Great_Oxygenation_Event

6 Works Cited Shubin, Neil. Your Inner Fish: a Journey Into the 3.5- billion-year History of the Human Body. New York: Vintage, 2009. Print. Maxwell, David L. "Extracellular Matrix." AP Biology Wiki. Pingry, 2008. Web. 5 Sept. 2011.. "Cell Communication." Hodnett-AP. Wikispaces, 2011. Web. 5 Sept. 2011.. "Great Oxygenation Event." Wikipedia, the Free Encyclopedia. 17 Aug. 2011. Web. 5 Sept. 2011.. Maxwell, David L. "Extracellular Matrix." AP Biology Wiki. Pingry, 2008. Web. 5 Sept. 2011.. Shubin, Neil, and Kalliopi Monoyios. "Your Inner Fish: Teaching Tools." Tiktaalik Roseae. University of Chicago, 2009. Web. 5 Sept. 2011.. 6


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