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the protective layer of fibrous connective tissue which surrounds each kidney.
microscopic canals running longitudinally through compact bone tissue that contain blood vessels...
coiled thread-like structures of DNA and histone, which is a protein, in the cell nucleus. They...
a small finger-like blind-ending extension of the mammalian large intestine connected to the...
pollutant gases such as nitrogen monoxide and nitrogen dioxide. They are produced during ...