A 55-year-old male with a 30-year history of smoking is exam…

A 55-year-old male with a 30-year history of smoking is examined for respiratory disturbance. Examination of his airway (bronchial) reveals that stratified squamous epithelial cells have replaced the normal columnar ciliated cells. What is this type of cellular adaptation called?

Customs and Border Protection and Homeland Security Investig…

Customs and Border Protection and Homeland Security Investigations in the Department of Homeland Security were formed by combining the (a) Immigration and Naturalization Service and the (b) U.S. Customs Service. In which cabinet departments did these agencies formerly reside?a. INS: b: Customs: