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Not all - but most - organisms are over 50% water
Water is one of the the most important chemical compounds because no living creature can survive without it. In all living organisms, more than half of their weight is due to water.{{fact-scientific}}
Water is one of the the most important chemical compounds because no living creature can survive without it. More than half of the weight of most organisms is due to water. <ref>"... a high fraction of the make up of an organism (50%) usually consists simply of liquid water" [http://209.85.165.104/search?q=cache:xD25WXmL1egJ:www.mansfield.ohio-state.edu/~sabedon/biol1015.htm+water+organisms+mass&hl=en&ct=clnk&cd=4&gl=us&lr=lang_en Stephen T. Abedon, Ph.D.], Ohio State University</ref>
It is an odorless, tasteless, colorless liquid. Its chemical formula is H<sub>2</sub>O, two hydrogens and one oxygen atom.
It is an odorless, tasteless, colorless liquid. Its chemical formula is H<sub>2</sub>O, two hydrogens and one oxygen atom.