When the distance between two objects increases, the gravitational force between them a. increases b. decreases c. stays the same

Heavy rains and mudslides cause a river to change course, isolating two groups of lizards from one another. over a long period of time, " one group will probably become an endemic species. both groups will probably become native species. "the groups will probably diverge genetically, and speciation may occur." one or both groups will probably emigrate. one or both groups will probably become invasive species.