HESI A2 Practice Exam with verified question and answers

HESI A2 Practice Exam with verified question and answers 1. Which of the following is NOT a function of the digestive tract? a) to use enzymes to break down food b) to perform gas exchange c) to remove waste from the body d) to use peristalsis to move food along: b) to perform gas exchange Gas exchange is a function of the respiratory system 2. The body, at all times, attempts to maintain homeostasis.The best definition of homeostasis is: a) a process that maintains the stability of the human body's internal environment in response to changes in internal and external conditions b) a function via which the body breaks down glucose to use as energy c)a process that maintains the immune system's defenses d) a process in which the body resists change to genetic structure: a) a process that maintains the stability of the human body's internal environment in response to changes in internal and external conditions