- Life Sciences
simple inorganic chemical substances (mineral salts) that are needed in relatively large amounts for normal growth and development of a living organism.
compounds that consist of any combination of elements, but do not usually contain carbon and...
double-membraned, pigmented, cytoplasmic organelles found in plant cells. The organelles have...
the factor in an investigation that is under the control of the investigator.
a general term form any plant diseases caused by different bacteria and fungi.