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.
However, the payer of child support may be able to claim the child as a dependent: Generally, the child is the qualifying child of the custodial parent, and the custodial parent is generally allowed to claim a dependency exemption for the child, if the other tests for claiming the exemption are met. The parent with whom the child lived for the greater part of the year is the custodial parent for federal income tax purposes.