Periodic fitness self testing is efficient way to

Which of the following is not a possible cause of conduction deafness? a) cochlear nerve degeneration b) middle ear infection c) impacted cerumen d) otosclerosis

Samuel is a 63-year-old single man who works full time in a food processing plant. he has a history of esophageal cancer, which was treated successfully with anti-cancer drugs and surgery four years ago. his weight had been stable at 135 pounds until 6 months ago. since then, he has experienced an involuntary weight loss of 10 pounds. he complains of a poor appetite and being overly weak, tired, and irritable. he also complains of cracks at the corners of his mouth and a chronic sore throat, which concerns him, given his cancer history. his usual diet is fairly consistent. he states that he rarely eats breakfast because he starts work at 6 a. m. he eats two deli meat sandwiches, "usually pastrami or salami," and a soda at 10 a. m., and may eat a candy bar in the afternoon when he gets off work. he often prepares and eats a frozen dinner or pizza at home in the evening and routinely drinks "about four or five beers" before going to bed. occasionally, he cooks roast and mashed potatoes for dinner and may have cereal with milk for a snack before bed. he rarely eats vegetables or fruit. 1. considering samuel's alcohol consumption, which b vitamin may he be deficient in? a. pantothenic acid b. niacin c. riboflavin d. biotin e. thiamin

If a viral host cell has a mutation that interferes with the addition of carbohydrates to proteins in the golgi, which of the following could likely result? a) the viral envelope proteins would not be glycosylated and might not arrive at the host plasma membrane. b) the viral capsid proteins would not be glycosylated and might not arrive at the host plasma membrane. c) the viral core proteins would not be glycosylated and might not arrive at the host plasma membrane. d) the virus would be unable to reproduce within the host cell