your inner fish by neil shubin
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Your Inner Fish by Neil Shubin. Leonie Cohen. Chapter 7 – Adventures in Bodybuilding. Bodybuilding. Body = parts work together Division of labor. (a.k.a. “Cambrian explosion”). How? Why? Why so long?. ?. Cells: Sticking and Communicating. “Stick” (pages 127,128) - PowerPoint PPT PresentationTRANSCRIPT
Your Inner Your Inner Fish Fish by Neil Shubinby Neil Shubin
Leonie Cohen
Chapter 7 – Adventures in Bodybuilding
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BodybuildingBodybuilding
How?Why? Why so long?
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Body = parts work together◦ Division of labor
(a.k.a. “Cambrian explosion”)
Cells: Sticking and Cells: Sticking and CommunicatingCommunicating
“Stick” (pages 127,128)
◦Molecular rivets◦Collagen - ECM
“Talk”(page 128)
◦Molecularsignals
http://wiki.pingry.org/u/ap-biology/index.php/Extracellular_matrix
http://hodnett-ap.wikispaces.com/Chapter+11+Cell+Communication
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Choanoflagellates Choanoflagellates [koh-[koh-uhuh-noh--noh-flajflaj--uhuh-leyts]-leyts]
Single-celled microbes
DNA of choanoflagellate ≈ DNA of sponge
(pages 132-135)
The potential of single-celled organisms:o Catching prey rivets,
attachmentso Molecular interactions
communication
Importance?4
Development of BodiesDevelopment of BodiesWhy?
◦ 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
Works CitedWorks CitedShubin, 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. <http://wiki.pingry.org/u/ap-biology/index.php/Extracellular_matrix>.
"Cell Communication." Hodnett-AP. Wikispaces, 2011. Web. 5 Sept. 2011. <http://hodnett-ap.wikispaces.com/Chapter+11+Cell+Communication>.
"Great Oxygenation Event." Wikipedia, the Free Encyclopedia. 17 Aug. 2011. Web. 5 Sept. 2011. <http://en.wikipedia.org/wiki/Great_Oxygenation_Event>.
Maxwell, David L. "Extracellular Matrix." AP Biology Wiki. Pingry, 2008. Web. 5 Sept. 2011. <http://wiki.pingry.org/u/ap-biology/index.php/Extracellular_matrix>.
Shubin, Neil, and Kalliopi Monoyios. "Your Inner Fish: Teaching Tools." Tiktaalik Roseae. University of Chicago, 2009. Web. 5 Sept. 2011. <http://tiktaalik.uchicago.edu/book-tools.html#ch7>.
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