I think the correct answer is A
Explanation:
A. a measure of heat energy in food
The best way is to drink milk and exercise, since Milk gives calcium and exercise helps keeps bones strong.
Pathogens usually enter our bodies through the eyes, mouth, nose, or urogenital openings, or through wounds or bites that breach the skin barrier. Organisms can spread, or be transmitted, by several routes.
So i would say no, that is false?
The human body is mostly made up of water (H2O), and there is one oxygen atom in each molecule of water. Note that, although each water molecule also contains two hydrogen atoms, the atomic mass of hydrogen (about 1) is much smaller than the atomic mass of oxygen (about 16). Because of this, hydrogen contributes less to human body mass than oxygen.
