Flu viruses enter into a prospective host cell (along the respiratory tract) and direct it to produce many copies of the viruses. As those viruses bud off of the infected cell, they take the cell membrane of the host cell with them. How might this kill the host cell?
A) The infected host cell loses the ability to transport materials in and out.
B) The infected cell cannot metabolize.
C) The infected cell cannot make RNA.
D) The infected cell loses the ability to move towards nutrient sources.
E) None of these is correct.
A) The infected host cell loses the ability to transport materials in and out.
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Indicate whether this statement is true or false.
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What will be an ideal response?
When an unrestrained passenger's head strikes the windshield of a motor vehicle following rapid deceleration:
A) the anterior portion of the brain sustains stretching or tearing injuries, and the posterior portion of the brain sustains compression injuries. B) the head falls back against the headrest or seat and the brain collides with the rear of the skull, resulting in direct injury to the occipital lobe. C) the brain initially strikes the rear of the skull, resulting in direct bruising, and then rebounds and strikes the front part of the skull. D) compression injuries occur to the anterior portion of the brain, and stretching or tearing injuries occur to the posterior portion of the brain.
On average, what percent of body weight is water?
a. 80% b. 60% c. 50% d. 40% e. 30%