An individual who has been bitten by a poisonous snake that has a fast-acting toxin would likely benefit from _____
A) vaccination with a weakened form of the toxin
B) injection of antibodies to the toxin
C) injection of interleukin-1
D) injection of interferon
B
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Which of the following will increase the unloading of oxygen within the tissue?
A) increased hydrogen ion concentration only B) increased PCO2 only C) increased body temperature only D) both increased hydrogen ion concentration and increased body temperature E) increased hydrogen ion concentration, increased body temperature, and increased PCO2
During wine-making, yeast cells obtain energy by fermenting sugar. Alcohol and CO2 are products of this process. When alcohol content reaches a certain level, the yeast cells can no longer survive. The limiting factor to yeast growth in this example is the
A. availability of raw materials. B. availability of energy. C. production of waste products. D. interactions with other organisms.
What is the function of the epiglottis?
A. To line the interior of the thoracic cavity. B. To increase the buffering capacity of blood. C. To separate the thoracic cavity from the abdominal cavity. D. To cover the trachea when food is being swallowed. E. To bind to carbon dioxide in red blood cells.
What is another name for the taiga?
A. coniferous forest B. prairie C. savanna D. tundra E. tropical rain forest