When two different liquid chemical compounds at room temperature are mixed together, the beaker they are poured into is icy to the touch. what kind of reaction is this an example of? a. a fission reaction b. a combustion reaction c. an exothermic reaction d. an endothermic reaction

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

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

One nanometer is equal to how many meters?