Normal body function maintains a state of internal balance called

(a)  

In location, the nose is (a)   to the eyes

In the word physiology, -logy is an example of a word part called a(n)

(a)  

The system that uses electrical signals to control and coordinate other systems

(a)  

The system that brings needed substances to the body tissues

(a)  

The system that converts foods into a form that body cells can use

(a)  

The outermost body system

(a)  

The system of glands that produce hormones

(a)