For which of these questions could a testable hypothesis be developed? Check all that apply. Does a flu shot hurt worse than a pneumonia shot?
Will breeding a red rose with a white rose make a pink rose?
Are pecans better tasting than walnuts?
Will practice help improve your reaction time?
Whose pulse rate increases more after running up and down a flight of stairs, that of an adult or child?

Rachel wants to improve her body composition by reducing her bmi. she swims with her friends after school two days a week and eats a well-balanced diet. what else should she do to ensure that she properly applies all the necessary fitt principles in her plan? a. she should add more cardiovascular training and weight training to her exercise routine and eat several low-calorie meals throughout the day. b. she should increase her swimming workouts to five days a week and eat a high-calorie diet that equals 2,500 calories. c. she should add a few days of weight training to her exercise routine and consume 4,000 calories a day. d. she should eat a high-protein, low-carbohydrate diet and add five days of weight training to her exercise routine. select the best answer from the choices provided. a b c d mark this and return