I believe the heart should beat about 20-40 times
Exhalation removes <span>carbon dioxide </span>from the body.
Answer: B.
When inactive you do not need more calories and nutrients it is the opposite because you are not burning any at all.
All of the other options are true.
breast milk and formula are higher in fats than diets.
as you get older your activity level does decline meaning less calories should be consumed.
children two years and older should follow the food guide pyramid.
