24. The passage is primarily concerned with attempts to determine
the role of siderophores in the synthesis of serum iron
new treatments for infections that are caused by A. hydrophilia
the function of fever in warm-blooded animals
the mechanisms that ensure constant body temperature
iron utilization in cold-blooded animals
25. According to the passage, Garibaldi determined which of the following?
That serum iron is produced through microbial synthesis.
That microbial synthesis of siderophores in warm-blooded animals is more efficient at higher temperatures.
That only iron bound to other substances can be used by bacteria.
That there is a relationship between the synthesis of siderophores in bacteria of the genus Salmonella and environmental temperature.
That bacteria of the genus Salmonella require iron as a nutrient.
26. Which of the following can be inferred about warm-blooded animals solely on the basis of information in the passage?
The body temperatures of warm-blooded animals cannot be easily controlled in the laboratory.
Warm-blooded animals require more iron in periods of stress than they do at other times.
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