Changes in groups of organisms over time produce variations in a population. this relates to a. macroevolution b. microevolution c. both macroevolution and microevolution

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?