50-70%. At the age of 1, percentage is around 65%. In adult men, 60% of their bodies is water. 55% of adult women's weight is water due to fat not holding as much water as lean tissue; fat makes up more of women's bodies than men.
The definition is:genetics definition<span>. The study of heredity, or how the characteristics of living things are transmitted from one generation to the next. Every living thing contains the </span>genetic material<span> that makes up DNA molecules. This</span>material<span> is passed on when organisms reproduce.</span>
The structure is calcium ions.