White blood cells use to help identify foreign substances in the body. A. platelets and white blood cells B. antibodies and antigens C. enzymes and red blood cells D. white blood cells and red blood cells

Which step would a state health department most likely take to reduce lead exposure? promote health-planning operations to limit lead exposure at home.evaluate the number of countries affected by lead exposure.create general national guidelines for working with lead.carry out research on the worldwide effects of lead products.

Why would a smoker tend to inhale more deeply and smoke more cigarettes when he or she switches to low nicotine cigarettes

22. which situation describes the appropriate use of drugs? a.using your friend’s prescription drug according to label instructions b.using an over-the-counter drug according to your friend’s instructions c.using an over-the-counter drug according to label instructions d.using your friend’s prescription drug according to your friend’s instructions