Can mutations occur in both DNA and RNA nucleic acids ?

What is the difference between an igneous, sedimentary and metamorphic rock

Contrast how pollination is different among gymnosperms and angiosperms.

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.