Regents Prep: Living Environment
Multiple-Choice Questions
  Question 1 of 11   Feedback Mechanism
During a race, the body temperature of a runner increases. The runner responds by perspiring, which lowers body temperature. This process is an example of


 1.  maintenance of homeostasis

 2.  an antigen-antibody reaction

 3.  an acquired characteristic

 4.  environmental factors affecting phenotype

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