What is an antigen?They are a special marker on each pathogen that identifies it specifically. They are a medicine you take to fight off a bacterial invader. They lock onto viruses to paralyze them so they cannot infect cells. They create a barrier as part of the first line of defense

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

9. withdrawal occurs when alcohol is removed from the system after the brain a. adapted to the continued presence of alcohol b. become physically saturated with alcohol c. become impervious to the effects of alcohol d. begun to treat alcohol as a poison

Explain the importance of getting and proper treatment for a mental illness.