Explain how the amount of dna does not relate to how complex an organism is

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

Which of the following is the best definition for the process of photosynthesis? a.) plants digest sugars to make energy. b.) plants use oxygen and glucose to make carbon dioxide. c.) plants use sunlight and carbon dioxide to make sugars. d.) plants use sunlight to make chlorophyll and chloroplasts.

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.