Two subgroups of a population separated by a river are rejoined when a drought causes the river to run dry. assuming that speciation has not yet occurred, what is true about the two subgroups?

Which of the following is not a characteristic of carnosaurs? a. long narrow skulls b. strong forelimbs c. horn projecting from their skulls d. none of the above

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi, r^3 , where r is the sphere’s radius.

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what