Water about 39 fahrenheit is more dense then water at 32 fahrenheit why would living organisms in the lake die if the water freezing point was denser then 4

As studied this week in the cell cycle, we saw how a cell moves through its life with a plan. as you transition from a student at uma to a valued member of your chosen career field, what will you put into place in your life to manage and to fit the new responsibilities of your career into your current life?