An advantage of parallel circuits is that they a) stop transmitting all current if even one resistor breaks. b) form a single path through which the current flows. c) allow current to flow even if some paths are cut. d) divide the voltage evenly between all resistors.

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.