Sterilization by heat
Sterilization means the freeing of an article from all living forms that includes viruses, bacteria and their spores, fungi and their spores, both pathogenic and...
Principal vitamins and its function
Vitamins Function Deficiency A(retinol) Rhodopsin synthesis, normal health of epithelial cells, and bone and tooth growth. Rhodopsin deficiency, night blindness, retarded growth, skin disorders,...