A 20-year-old housekeeper at the hospital has just started her shift. She is in the process of restocking the supplies on her cart when she notices several spots of dried blood on the handle of the cart. The woman, who has a small, unbandaged cut on her hand, is not wearing gloves while stocking the cart. She becomes concerned about possible infection with either hepatitis B virus or human immunodeficiency virus, both viruses that are surrounded by viral envelopes. Which of the following statements best describes the potential origin of that viral structure?
a. The mitochondrial membrane of the host cell
b. The vesicular membrane of an inclusion body in the host cell
c. The plasma membrane of the host cell
d. The endosomal membrane of the host cell
e. The nuclear membrane of the host cell
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During binary fission, what events must occur before the cell splits into two new cells?
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About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000
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Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d
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A 20-year-old housekeeper at the hospital has just started her shift. She is in the process of resto...
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