1 vote Vote for this answer. The dreaded 'more information than you need'. Percentage of water making up tissues, organs, fluids and bone in the human body: Brain 75%, Heart 75%, Lungs 86%, Muscle 75%, Liver 85%, Kidney 83%, Bone 22%, Blood 83%, Saliva 95%, Perspiration 95%. http://www.sumeria.net/oxy/o3.html.
If you are a resident of Mexico or Canada or a national of the United States, you can also claim a personal exemption for your spouse if your spouse had no gross income for U.S. tax purposes and was not the dependent of another taxpayer. In addition, you can claim exemptions for your dependents who meet certain tests.
You can claim this exemption even if your spouse has not been a resident alien for a full tax year or is an alien who has not come to the United States. You can claim an exemption for each person who qualifies as a dependent according to the rules for U.S. citizens. The dependent must be a citizen or national of the United States or be a resident of the United States, Canada, or Mexico for some part of the calendar year in which your tax year begins.