Mercury (hg) is a heavy metal that can damage the nervous system. consumption of foods containing mercury is of particular concern for pregnant women, as the developing nervous system of the fetus is quite susceptible to damage from mercury. in addition, children exposed to mercury in utero may have delayed development and lower scores on standardized tests. methyl mercury biomagnifies in living tissues and is most prevalent in marine food chains. based on the simple marine food chain above, what fish would you advise a pregnant friend to eat regularly? what fish or shellfish would you advise her to avoid?

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

A35-year-old woman comes to the ed complaining of chest pressure. she has had such episodes intermittently over the last 5 years, usually when sleeping, but over the last year she has had more frequent severe symptoms that are occasionally associated with severe migraine headaches. the pain is midsternal and is described as pressure that extends as a band around her chest. the ed physician is initially dubious that the pain is cardiac in origin, because the woman has no coronary disease risk factors. an ecg, however, shows 2mm st-segment elevation and inverted t waves in leads v1 through v5 and 1mm st-segment depression in leads ii, iii, and avf. before the cardiologist arrives in the ed, the patient's ecg has returned to normal. this repeat normal ecg is obtained after the administration of aspirin, nitroglycerin, morphine, and oxygen. which of the following is most likely for these findings? - diffuse intimal thickening with focal areas of atherosclerotic narrowing - intermittent thrombus formation and lysis in the left anterior descending artery - intermittent thrombus formation and lysis in the right coronary artery - plaque rupture and thrombus formation in the left anterior descending artery - transiently increased coronary vascular tone in the right coronary artery

Which  type  of diabetics require injectable insulin?   type iii  type iv  type i  type ii