The secretion of testosterone is controlled by ______.

Micro-organisms are microscopic and can only be observed under a microscope. Micro-organisms include:

The most basic form of interpersonal confirmation is __________, the expression of awareness of another person’s existence.

________ is the hormone secreted by the adrenal cortex that stimulates the kidneys to retain ________ and maintains blood volume and blood pressure.

A cordlike structure that attaches muscles to bone is called a(n) ________.

The ____________ is a reflex center that controls and coordinates the interaction of skeletal muscles.

Communication that aims at manipulating a person or group for the benefit of the person manipulating is known as __________.

A ganglion is a 

Which of the following statements about the aging of skin is correct?

Which of the following is NOT a level of interpersonal confirmation?