Nearly one-quarter of all Americans have arthritis. (True or false?)

Nearly one-quarter of all Americans have arthritis.
 
  Indicate whether the statement is true or false.

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Histamine production can cause increased production of mucus in the airways.
 
  Indicate whether the statement is true or false.

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Another term for hay fever is allergic rhinitis.
 
  Indicate whether the statement is true or false.

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Hay fever is usually considered a seasonal disorder.
 
  Indicate whether the statement is true or false.

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Allergies to ragweed result from an underactive immune system response.
 
  Indicate whether the statement is true or false.