1. In what sense do we occupy a midrange of size in the universe? A midrange of temperature?
   
   
2. Why would life be difficult to imagine at 10,000K?
   At 100K?
   
   
3. Why would it be difficult to imagine a living organism
   100 in diameter? What disadvantages might there be to a living organism 100 miles in diameter?
   
   
4. Why is complexity an important aspect of living organisms? In what sense is the whole greater than the sum of the parts in a living cell?