1. For Tuesday GBII lab: Goggles + Lab coat + Closed-toe shoes If you don’t have goggles today, then you can rent them in lab TODAY ONLY until you get your own ($3 EXACT CHANGE!)

2. Undergraduate student research positions available in Dr. Sabet’s lab…pick-up lab research application outside PSC 221, complete, and submit to Dr. Sabet

3. Got $$$$? Sarkisian and Jaeger scholarships deadline in Spring quarter…stay tuned!

Announcements:

Fig. 25.7

675 – 875 mya

Fig. 32.3 – Three lines of evidence that choanoflagellatesare closely related to animals

Ediacaran fossils(various websites – Fig. 32.4)

Fig. 25.7

542 - 251 mya

Frogfish – type of anglerfish(various websites)

Spotted Handfish (above) and Scorpionfish (below)(various websites)

Mudskipper – type of Gobie fish(various websites)

Fig. 25.7

251 – 65.5 mya

Fig. 25.7

65.5 mya - present

[FIGURE 32.2]

http://www.sherriandjim.net/SCUBA/bon2006sep/Sponges1.jpg

http://www.boydski.com/diving/photos/sponges/CloudSponge10.jpg

Some sponges lack body symmetry

[FIGURE 32.7]

[FIGURE 32.8]

[FIGURE 32.9]

[FIGURE 32.10 versus 32.11]