Which of the following correctly describes what scientists and doctors have learned about gastric and duodenal ulcers?

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Ulcers are best treated with the ingestion of alkaline substances.

  

Ulcers result from the production of excess acid in the stomach.

  

Ulcers are most commonly triggered by anxiety.

  

Ulcers are an infectious disease caused by bacteria.

 

asked Dec 31, 2012 in Biology by anonymous
    

1 Answer

0 votes

 

Ulcers are an infectious disease caused by bacteria.

 

answered Dec 31, 2012 by anonymous

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