________ engineering involves making or changing an organism's DNA

Inactive medical-record files are generally assigned to patients who have not been seen by the physician for a period of:

A) 6 months. B) 1 year. C) 2 to 5 years. D) 10 years.

For the EMS provider, most of the problems associated with sandstorms and dust storms are directly related to:

A) the abrasive and visual effects. B) high winds that cause the storm. C) objects hidden by blowing sand. D) the inhalation of toxic gases.