1) Which of the following activities represents a physiological study? A) making a section through the kidney to observe its interior
B) studying how the layers of the skin function
C) viewing muscle tissue through a microscope
D) observing how the heart contracts to pump blood

Which two levels of the spine that can undergo flexion and extension?

What nutrients prevent osteoporosis? a. all vitamins and minerals b. calcium, vitamins c, d, and k, and magnesium c. protein d. carbohydrates

15 min. leftread about what these classmates had for lunch and identify the missing terms. mark eats whole-wheat pasta mixed with vegetables for lunch. for dessert, he has a cherry popsicle. the whole-wheat pasta and fresh vegetables will be digested (faster than, slower than, at the same rate as) the popsicle.