1. Week 3 Quiz: Merismopedia Anabaena 1) Why do these colonies of cyanobacteria have different organization / morphology? Give ONE reason. (2pts)

2. Week 3 Quiz: 2) What is the “halo” surrounding these cells? (1 pt) Anacystis

3. Week 3 Quiz: 3) What type of cell is indicated by the arrow (1 pt) 4) …How do you know? (Name one identifying character). (2 pt) 5) What is the function of this type of cell? (2 pts) Anabaena

4. Week 3 Quiz: 5) Which picture (A or B) shows an example of TRUE branching? (1 pt) A B

5. Week 3 Quiz: 6) T or F: (1 pt) The roots of some cycads represent a symbiotic relationship. In exchange for sheltering cyano- bacteria, the plant receives sugars that are secreted by the tiny cyanobacteria.