A normal heart beat for adults is 60 to 100
Answer:
Calories per gram
The calories in food come from carbohydrates, proteins, and fats. A gram of carbohydrate contains 4 calories. A gram of protein also contains 4 calories. A gram of fat, though, contains 9 calories — more than twice the amount of the other two.
Explanation:
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You should eat approximately 3-5 servings of vegetables a day to maintain a healthy, steady diet.