Answer:
The question should be "What effect on human tissues?"
Explanation:
The animals are used in drug research to be released. The objective is to verify the existence of possible adverse reactions, such as vomiting, diarrhea, loss of coordination and even convulsions. In addition, this practice seeks to evaluate the effect of medications on a mammal and may indicate whether the manufacture of this remedy would be appropriate for humans or not.
When the drug has positive effects on the body of an animal in the laboratory, scientists begin to evaluate whether on a human body, this drug would have the same positive effects. For this reason, the investigative question that Keiko should ask, after seeing the positive effect of aspirin on rabbits, is "what is the effect of this aspirin on humans?"
