Answer:
a. to defend against bacteria
Explanation:The skin helps protect the body and various body cells from infection. A break in the continuity of a skin can result into harmful germs,bacteria infection penetrating into the body system. Hence the skin is a protective covering from germs,infection.
The equilibrium organ is supported by vision. That is why closing your eyes can reduce your ability to keep your body in balance. Even if you don't feel rotation on your body, your eyes can detect it visually.
So, a <span>person with impairment of organs of equilibrium would compensate their lack of sensory information by their eyes.</span>
