- Life Sciences
simple inorganic chemical substances (mineral salts) that are needed in relatively large amounts for normal growth and development of a living organism.
is one-millionth of a metre or one-thousandth of a millimetre (0,001 mm). Its unit symbol in the...
dietary supplements of live bacteria that are good for human health.
a disease caused by the bacterium Vibriocholera, which produces a toxin in the lining of the...
extremely small infectious particles that can only reproduce inside a host cell.