Amain difference between gravitational and electric forces is that electrical forcesa. attract. b. repel or attract. c. obey the inverse-square law. d. act over shorter distances. e. are weaker.

Select the correct answer from each drop-down menu. compared to its surroundings, the concentration of solutes is low inside a cell. so, the cell is with respect to its surroundings. a particular solute in this cell uses energy for its transport from the cell to its surroundings. this type of transport is called