Where do electrons get their energy in photosystem II? A. From ADP and ATP
B. From NAD and NADPH
C. From energy in photons
D. From glucose in the Calvin cycle

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