The difference between a sprain and a strain is that a sprain injures the bands of tissue that connect two bones together, while a strain involves an injury to a muscle or to the band of tissue that attaches a muscle to a bone.
Sprain: ankle, anything dealing with the joints of the bone.
Strain: your leg muscle, thigh, arm, wrist and anything dealing with tissues in the body.
Expose your food to air – and in particular the oxygen in the air – and your shelf life will reduce. It's the oxygen in the air that allows bacteria and other bugs to grow and spoil the food. Or a process called oxidation can cause foods to go off – such as fats and oils becoming rancid.
Answer:
They are used in manufacture of foods and production of antibiotics, probiotics, drugs, vaccines, starter cultures, insecticides, enzymes, fuels and solvents. In addition, with genetic engineering technology, bacteria can be programmed to make various substances used in food science, agriculture and medicine.
Charles A. Hufnagel, M.D. (August 15, 1916 – May 31, 1989) was an American surgeon who in the early 1950s invented the first artificial heart valve.
