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the outermost layer of the stele or vascular cylinder in a dicotyledonous plant root. Lateral roots are formed from here.
a general term form any plant diseases caused by different bacteria and fungi.
the actions of the body's immune system that work to fight infections or disease.
minerals and vitamins that are taken as nutritional supplements to regular food (in the form of...
structure within the cell cytoplasm that is surrounded by its own membrane and has a specific...
when the body makes its own antibodies when deliberately exposed to a dead or weakened pathogen...