Johnny is seven months old and is playing happily with toys in his room. his mom walks in the door, and he begins to smile and get excited at the sound of her voice

•preoperational
•toddlerhood
•pre-adolescence
•sensorimotor

Melanocytes and keratinocytes work together in protecting the skin from uv damage when keratinocytes a. provide the melanocyte with a protective shield against abrasion b. maintain the appropriate temperature so the product of the melanocyte will not denature c. maintain the appropriate ph in order for the melanocyte to synthesize melanin granules d. accumulate the melanin granules on their superficial portion, forming a uv-blocking pigment layer

The charge for office visit or procedure usually includes

The statement defines the use of ethics.