What are cd4+ cells? a. hiv treatment cells b. t cell that are destroyed by hiv. c. an experimental aids vaccine d. opportunistic cells that destroy the immune system

David, an aspiring baseball player, was struck on the left side of his face with a fastball pitch. he was not wearing a safety helmet. his zygomatic arch was crushed, as well as parts of the temporal bone. following the accident and reconstructive surgery, he noted that his left lower eyelid was still drooping and the corner of his mouth sagged. what nerve damage did he sustain?

What creates an electric force field that moves electrons through a circuit? a. energy sourceb. loadc. metal wiresd. resistance

Choose the correct drug to complete the sentence. is a powerful stimulant. is a highly addictive opiate. is prescribed for medical purposes in many states. which locations are covered in the drug-free school policy? check all that apply. school bus home school lunchroom sporting event at another school shopping center