1. The passage is primarily concerned with attempts to determine(A) the role of siderophores in the synthesis of serum iron
(B) new treatments for infections that are caused by A. hydrophilia
(C) the function of fever in warm-blooded animals
(D) the mechanisms that ensure constant body temperature
(E) iron utilization in cold-blooded animals
2. According to the passage, Garibaldi determined which of the following?(A) That serum iron is produced through microbial synthesis.
(B) That microbial synthesis of siderophores in warm-blooded animals is more efficient at higher temperatures.
(C) That only iron bound to other substances can be used by bacteria.
(D) That there is a relationship between the synthesis of siderophores in bacteria of the genus Salmonella and environmental temperature.
(E) That bacteria of the genus Salmonella require iron as a nutrient.
3. Which of the following can be inferred about warm-blooded animals solely on the basis of information in the passage?(A) The body temperatures of warm-blooded animals cannot be easily controlled in the laboratory.
(B) Warm-blooded animals require more iron in periods of stress than they do at other times.
(C) Warm-blooded animals are more comfortable at an environmental temperature of 37℃ than they are at a temperature of 42℃.
(D) In warm-blooded animals, bacteria are responsible for the production of siderophores, which, in turn, make iron available to the animal.
(E) In warm-blooded animals, infections that lead to fever are usually traceable to bacteria.
4. If it were to be determined that “similar phenomena occur in warm-blooded animals”, which of the following, assuming each is possible, is likely to be the most effective treatment for warm-blooded animals with bacterial infections?(A) Administering a medication that lowers the animals’ body temperature
(B) Injecting the animals with an iron solution
(C) Administering a medication that makes serum iron unavailable to bacteria
(D) Providing the animals with reduced-iron diets
(E) Keeping the animals in an environment with temperatures higher than 37℃