Which is evidence that scientists use to support the big bang theory? a. most orbits have an elliptical shape. b. the outer planets are mostly composed of hydrogen and helium. c. most galaxies are moving away from each other. d. earth is the only planet with permanent liquid water on its surface.

How did the discovery of the rhesus factor affect society? o more patients died from having a transfusion with the wrong rhesus factor 0 new treatments during pregnancy could prevent harm to the developing child. o less donated blood could be used in the treatment of patients. the number of blood types was reduced by half

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

What material did the moon come from?