Which child may have a behavioral problem? a. three-year old pete hits his sister when she takes his toy. b. two-year old mansoor cries when his mother goes to work. c. nine-year old margarita has been wetting the bed in the last few weeks. d. thirteen-year old yuan is easily excitable.

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