How would life on earth change if water did not naturally exist in all three states in the range of temperatures on earth?

If water did not exist in all three states—solid, liquid, and gas—across Earth's temperature range, life as we know it would be drastically altered. Many biological processes, such as cellular metabolism and nutrient transport, rely on water's unique properties. The absence of liquid water would eliminate oceans, rivers, and lakes, severely disrupting ecosystems and climate patterns. Additionally, the lack of water vapor in the atmosphere would hinder weather formation and temperature regulation, making Earth inhospitable for current life forms.