<span>The strength of the gravitational force between two objects depends on two factors, mass and distance. the force of gravity the masses exert on each other. If one of the masses is doubled, the force of gravity between the objects is doubled. increases, the force of gravity decreases.</span>
Natural selection is the process of survival of the fittest. It involves adaptation, competition, reproduction, etc...
The answer would be Neurotransmitters
hope that helps
Osmosis is the movement of water from a hypotonic solution to a hypertonic solution through a semi-permeable membrane. The cell utilizes this phenomenon to indirectly regulate water in its cytoplasm by regulating the amount of osmotically active solutes in its cytoplasm through active transport.