When new information or experiences cause you to modify your existing schemes.
Hello! The U.S. has one of the highest obesity rates in the world. Americans don't consume enough leafy greens, Vitamin C, and sweet potatoes. Those foods are healthy, but overly processed goods and sweets are consumed a lot, which explains why America's obesity rate is so high. In fact, 1 in 3 adults are obese and 1 in 6 children are obese. Lack of exercise also contributes to obesity as the sweets are turned into fat and it's stored there.The answer is A.
Your heart rate is increased during physical activity to increase cardiac output and deliver the blood flow needed to the muscles to carry out those activities. Your heart itself is a muscle, and also gets a workout during exercise. The job of the heart is to get more blood to the body's muscles when they work hard. Hope this helped.
