Which of the following procedures for providing first aid for severe bleeding is not correct? a. the victim should sit upright. b. the wound should be elevated. c. gloves should be worn. d. new bandages should be placed on top of old bandages.

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