Problem: 
Q: Q: Unlike prokaryotes, eukaryotes have what?   A:
Answer: cell nucleus
Problem: 
Q: Q: In a generator, work done to turn the coil is converted to what type of energy?   A:
Answer: electric
Problem: 
Q: Q: Most scientists think that ordinary matter makes up how much of the total matter in the universe?   A:
Answer:
less than half