What’s the density of ice compare to that of liquid water and why is the property important to aquatic organisms ? 1) the density of ice is higher than that of liquid water , which means that ice forms from the bottom of lakes upward , protecting aquatic life in winter 2) the density of ice is lower than that of liquid water , which means ice forms from the top of lakes downward, protecting aquatic life in winter 3) the density of ice is higher than that of liquid water , which means that ice forms from the top lakes downwards , protecting aquatic life in winter 4) the density of ice is lower than that of liquid water , with means that ice forms from the bottom of lakes upward , protecting aquatic life in winter