Which of these is an example of an experiment?

Add different kinds of soil to three potted plants

Beach erosion increased during the last winter storm

Temperature changes may be due to wind patterns

Wonder why some layers of rocks contain fossils

Why is excretion necessary to maintain homeostasis?

Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .