All life be it animal or vegetable is formed of organic molecules.
Humans can be thought of as 'electro-chemical polymers'.
catabolic molecules
No, if no molecules could escape from a body, it would not have any odor because odors are caused by molecules escaping from the body and interacting with the nose. Without molecules escaping, there would be no scent for others to detect.
The two molecules that are in your body H2O(water) and oxygen (not sure what the sign is)
Here are 4 molecules found in the human body: water, glucose, ammonia and glutamate.
A large body of water molecules would typically not have a stronger attraction to fewer molecules. It would however attempt to pull smaller molecules toward it.
Antigens Antibodies neutralize these molecules.
Because our body use them in all the biochemicals reactions that allow us to live. They are necessary, some in small doses some in bigger. That is why we separate them in macronutrients (inorganic molecules used in big quantity) and micronutrients (inorganic molecules used in small quantities)"
The Kidneys
swagg molecules
When the molecules in a body move with increased speed, the body's temperature will increase. This increase in kinetic energy will cause the molecules to vibrate or move more rapidly, which translates to a higher temperature of the body.
DNA
In order to move molecules in your kidneys your body needs energy. Energy is needed for every function that your body performs.