Explain the structure and function of dna. what important roles does the phosphate-sugar backbone, nitrogen bases, complementary strands, and hydrogen bonds play in the structure of dna?

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

Choose all the answers that apply. as ocean depth increases, temperature decreases temperature increases pressure increases pressure decreases salinity increases density increases

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption