Examlex
The electronegativity difference between K and Cl is ____, and therefore, the Mg-Cl bond is a(n) ____ bond.
Disease-Causing Organism
A pathogen, such as bacteria, viruses, fungi, or parasites, that can infect humans and animals, leading to disease.
Mucous Membranes
The moist tissue linings of various body cavities, including the mouth, nose, throat, and reproductive tract, that protect against infection.
Mechanical Barriers
Physical or structural methods used to prevent or control the entry or exit of harmful substances or organisms in a particular area.
Skin
The body's largest organ, serving as a protective barrier between the inside of the body and the external environment.
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