Quick!
1. How did the Miller-Urey experiment impact the way scientists think about the origins of life?
2. Use what you know about the Miller-Urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit