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inflammation of the lining of the bronchi and bronchiole causing them to become clogged with mucus.
a gland which secretes substances, usually enzymes, through a duct directly to the part of the...
compounds that consist of any combination of elements, but do not usually contain carbon and...
a relationship between two different organisms, of different species, from which at least one of...
(also called pith rays) sections of the medulla that occur between the vascular bundles.