1) describe the various layering arrangements and cell shapes of epithelium. 2) what characteristics are common to all epithelium tissues?

Which of these conditions most likely produces an unstable isotope?

What shape would a molecule with two bound groups and two lone pairs have?

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