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

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

3. Cells: Sticking and Communicating
“Stick” (pages 127,128)
Molecular rivets
Collagen - ECM
“Talk”(page 128)
Molecular
signals
ECM = extracellular matrix

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

5. Development of Bodies Why? Why so long? Predator vs. prey Cost
Pages (137,138)
Why?
Predator vs. prey
Importance of size
Why so long?
Cost
Increased oxygen – “Oxygen Catastrophe”
# of Billion Years Ago

6. Works Cited
Shubin, Neil. Your Inner Fish: a Journey Into the 3.5- billion-year History of the Human Body. New York: Vintage, Print.
Maxwell, David L. "Extracellular Matrix." AP Biology Wiki. Pingry, Web. 5 Sept < biology/index.php/Extracellular_matrix>.
"Cell Communication." Hodnett-AP. Wikispaces, Web. 5 Sept < ap.wikispaces.com/Chapter+11+Cell+Communication>.
"Great Oxygenation Event." Wikipedia, the Free Encyclopedia. 17 Aug Web. 5 Sept <
Shubin, Neil, and Kalliopi Monoyios. "Your Inner Fish: Teaching Tools." Tiktaalik Roseae. University of Chicago, Web. 5 Sept <