Which best describes eras and periods?

Which organic molecule is found in the chromatin of cells?

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion