Susan is suffering from an breathing disorder and is under treatment. Her doctor can verify the effectiveness of the treatment based on the oxygen level in her blood. Which technique can her doctor use to find whether the level of oxygen in her blood ? A. pulse oximeter B. Heart monitor C. ultrasonograph D. brachytherapy

Match the following. 1. an excellent source of vitamin c and vitamin a sucrose 2. linked to increased immunity and the destruction of toxic substances within the body vitamin a 3. found in yellow and green vegetables and fruits 2 vitamin c 4. vitamin in maintaining good eyesight and the treatment of infection fiber 5. the type of sugar found in all fruits 1 vegetables 6. table sugar skin 7. to keep the digestive system working properly and guards against colon cancer 3 carotene 8. where most of the fiber and vitamins are found in fruits and vegetables fructose