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water-proof, waxy suberin-thickened layer on the radial and transverse cell walls of the endodermis.
informal, local knowledge that has been built up over the centuries by the people who live in a...
blood that has no antigens (blood group O) and can be given to a person with any blood group....
small units of DNA that contain hereditary information that is passed from one generation to the...
group of similar organisms that can breed with each other to produce fertile offspring. It is...