To be considered active, adults should take about 5,000 steps a day.
Answer the following statement true (T) or false (F)
False
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Oral contraceptives may decrease the bleeding caused by _____
A) amenorrhea B) endometriosis C) preeclampsia D) uterine fibroid tumors
Which of the following is the BEST example of herd immunity?
A. A child infected with measles travels from Germany to the United States. Several babies contract the disease, but the outbreak is largely contained due to vaccinations. B. Certain populations of cattle are less susceptible to infection with encephalitis because of their genetic makeup. C. Once a certain threshold of individuals has been infected with a novel human pathogen, it is unlikely that any more will be. D. Geese and chickens are infected with different strains of influenza because they express different receptors on their cell surface. E. When infection spreads through a population, certain individuals generate stronger immune responses than others.
Lincoln has rheumatoid arthritis and a history of gastrointestinal bleeds. What characteristic of COX-2 inhibitors is important for Lincoln?
A) COX-2 inhibitors increase production of the prostaglandin that is good for the heart. B) COX-2 inhibitors decrease production of the prostaglandin that is good for the heart, but not the one that is harmful. C) COX-2 inhibitors increase production of the prostaglandin that is harmful for the heart, but not the one that is beneficial. D) COX-2 inhibitors decrease production of the prostaglandins that are good and bad for the heart.
?Researchers at the University of Illinois found no relationship between strong social ties and happiness.
Answer the following statement true (T) or false (F)