Reading Passage: His discovery of penicillin came about accidentally in 1928 while researching on influenza. He observed that the mold in one of his culture
plates had destroyed the bacteria. This observation helped him develop penicillin
therapy. Penicillin is an antibiotic derived from the fungus Penicillium. It can also
be created by using artificial processes.
The 'his' and 'he' referred to in the reading is:
O Ben Carson
O Alexander Fleming
Sigmund Freud
Renee Lucas

The world’s richest 20 percent of the population consume about what percentage of all goods and services in a given year?

Ireally need to know this answer asap

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