Most american diets emphasize as the main nutrient.
a. carbohydrates
b. protein
c. fat
d. vitamins

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Which of the following requires the action of a first class lever in the body

Which of the following defines scoliosis? a. a posture disorder characterized by the shoulders being rounded and the back hunched b. a posture disorder in which the spine curves up the back like a snake c. a posture disorder characterized by excessive curvature or arch in the lower back d. none of the above