Proteins that are produced in response to foreign antigens and that destroy or control the antigens are called _______________

Percent strength represents how many grams of active ingredient are in:

A) 1 mL. B) 10 mL. C) 100 mL. D) 1,000 mL.

Your friend, who is a landscaper, tells you that he got really sunburned at work today. He describes his torso and face as being very red, and he has blisters on his back. He asks you what to do. Based on his description, your recommendation would be to:

a. apply cool compresses and consult a physician. b. apply a thick layer of an aloe-based lotion on the sunburned areas. c. take ibuprofen for the discomfort. d. cover the sunburned areas with zinc oxide.