First line of defense may be described as
A) intact skin, mucous membranes, sebum, tears, and so forth.
B) the release of prostaglandins and leukotrienes in response to microbes.
C) damage resulting in cell lysis.
D) nonspecific leukocytes that secrete toxins onto the surface of virally infected cells.
E) the coating of a pathogen by complement.

Question

Quizplus · Accepted Answer

The first line of defense includes physical and chemical barriers like intact skin and mucous membranes that prevent pathogen entry.

First Line of Defense May Be Described as