A white flower (rr) is crossed with a white flower (rr) (purple is dominant). What percent will be purple?

Edward tolman explained the results of his study by theorizing that the rats were learning about the maze during every trial but they a. were agitated because other groups were getting reinforcement b. could not remember how to demonstrate it without reinforcement c. were not motivated to demonstrate it without reinforcement d. seemed to be too lazy to actually work without reinforcement

When you turn on a battery-operated device, an electrical circuit is

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?