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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)

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your inner fish by neil shubin

Your Inner Fish by Neil Shubin

Leonie Cohen

Chapter 7 – Adventures in Bodybuilding

bodybuilding
Bodybuilding
  • Body = parts work together
    • Division of labor

(a.k.a. “Cambrian explosion”)

How?

Why?

Why so long?

?

cells sticking and communicating
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

choanoflagellates koh uh noh flaj uh leyts
Choanoflagellates [koh-uh-noh-flaj-uh-leyts]

(pages 132-135)

  • Single-celled microbes
  • DNA of choanoflagellate ≈ DNA of sponge
  • The potential of single-celled organisms:
    • Catching prey  rivets, attachments
    • Molecular interactions communication
  • Importance?
development of bodies
Development of Bodies

Pages (137,138)

  • Why?
    • Predator vs. prey
      • Importance of size
  • Why so long?
    • Cost
    • Increased oxygen – “Oxygen Catastrophe”

# of Billion Years Ago

http://en.wikipedia.org/wiki/Great_Oxygenation_Event

works cited
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. <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 KalliopiMonoyios. "Your Inner Fish: Teaching Tools." Tiktaalik Roseae. University of Chicago, 2009. Web. 5 Sept. 2011. <http://tiktaalik.uchicago.edu/book-tools.html#ch7>.