Secretions from the skin such a sweat protect the body because they

sweat cools the surface of the skin and reduces body temperature

Explanation:

Protection: eccrine sweat gland secretion aids in preserving the skin's acid mantle, which helps protect the skin from colonization from bacteria and other pathogenic organisms.

i guess because there isn't enough love going around. < 3

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.