Which of the following is an example of negative feedback? during birthing contractions, the hormone oxytocin is released and acts to stimulate further contractions. when a baby is nursing, suckling leads to the production of more milk and a subsequent increase in the secretion of prolactin, which in turn stimulates lactation. after a blood vessel is damaged, signals are released by the damaged tissues that activate platelets in the blood; these activated platelets release chemicals that activate more platelets. when blood glucose concentration increases, the pancreas produces and releases the hormone insulin, which decreases blood glucose. as blood glucose decreases, the rate of production and release of insulin decreases

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