A patient who has had a severe hemorrhage accidentally receives a large transfusion of distilled water
directly into a major blood vessel. You would expect this mistake to:
a. have no unfavorable effect as long as the water is free of bacteria.
b. have serious, perhaps fatal consequences because there would be too much fluid to pump.
c. have serious, perhaps fatal consequences because the red blood cells could shrink.
d. have serious, perhaps fatal consequences because the red blood cells could swell and burst.
e. have no serious effect because the kidney could quickly eliminate excess water.
D
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Flight muscles of birds connect bones of the upper limb to the ________
a. pelvic girdle b. radius c. sternum d. ulna
Which of the following statements is false?
a. The best option for a vaccine against AIDS may be an engineered virus. b. HIV genes mutate faster than the immune system can form antibodies against their products. c. Home test kits are as accurate as those used in clinics d. It is very difficult to form a vaccine against all the mutated forms of HIV. e. The prevention of the spread of HIV currently depends upon implementing behavioral controls through education.
Air pollution over a long period of time can cause this condition
A) malaria B) influenza C) emphysema D) measles
The evolution of bilateral symmetry was a necessary precursor for the evolution of _______.
a. tissues b. segmentation c. a body cavity d. cephalization