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an infectious disease caused by the bacterium Mycobacterium tuberculosis thatusually infects the lungs.
(also called radioactive dating) a method of measuring the age of fossils based on how much...
a space or gap between two teeth. Many species of mammals have diastemata as a normal feature,...
an allergic reaction that triggers the immune system causing constriction and inflammation of...
the part of the lung where the bronchi, bloodvessels and nerves enter and leave the lungs.