is the science that studies food, including digestion and absorption of food, and the use of nutrients by the bod

this protocol provides a detailed procedure for nucleoprotein extraction from cultured cells and tissues in an efficient manner.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.