The circulatory system works closely with what other body system to deliver oxygen to the cells of the body? ​

Aduty of the adult assigned to supervise a group of children is to a. check on the children at least every 20 minutes. b. keep the children within earshot. c. give the children a list of "don'ts" concerning behavior. d. conduct a name-to-face check when transitioning to the playground

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

Take a nutritional supplement during times of stress a. is recommended by al doctors as a stress management technique b. has been scientifically proven to aid in stress management c. only adds to the stress you’re feeling d. can you feel better because you believe it will you