Question

Physical barriers that help prevent an individual from contracting diseases include __________. A. white blood cells, enzymes, tears, and skin B. sweat, stomach acid, skin, and enzymes C. sweat, tears, skin, and mucus membranes D. enzymes, mucus membranes, stomach acid, and tears

Answer 1

Physical barriers that help prevent an individual from contracting diseases include(C) sweat, tears, skin, and mucus membranes

Explanation:

1.The skin, mucous membranes, and endothelia throughout the body serve as physical barriers that prevent microbes from reaching potential sites of infection

2.Physical barriers serve a specific, but limited, purpose. They are intended to prevent the rapid bi-directional exchange of respiratory particles that occurs when two people interact in close proximity. Barriers do not kill or substantially remove the virus from the air.

3.Physical defenses provide the body's most basic form of nonspecific defense. They include physical barriers to microbes,

4.such as the skin and mucous membranes, as well as mechanical defenses that physically remove microbes and debris from areas of the body where they might cause harm or infection.