Answer:
At heart, all life on Earth uses a membrane that separates the organism from its environment. ... In this regard, water is essential simply because it's a liquid at Earth-like temperatures. Because it flows, water provides an efficient way to transfer substances from a cell to the cell's environment.
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Answer will be b for question
1. Saltwater is completely different from freshwater
2. Only certain animals can live in saltwater/regular water
3. Plants may not require things from saltwater to survive, things can die
