- - Water is essential for life as we know it on earth. It is used by plants and animals for basic biological processes which would be impossible without the use of water. The origin of all life can be traced back to the water in the Earth¹s precambrien seas. Water is also the universal solvent. It reacts with more elements and compounds than any other substance known to man.         Water is a polar molecule …showed first 75 words of 1196 total…

…showed last 75 words of 1196 total…as the surrounding water.         Certain seaside animals as well have developed ways to keep the salt in their water from dehydrating them. Some kinds of birds and reptiles have a sort of nasal salt gland which allows them to excrete the large amounts of salt that they take in when they drink. Some mammals as well can live in highly saline environments by making their urine stronger, and having very dry fecal material. THE END