Explain how a redox reacation involves electrons in the same way that a neutralization reaction involves protons

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

The excretory system,need answers for all: )

The fact that the total amount of energy in a system remains constant is a(n)