The Biological Significance of Water Being Its Densest at 4°C

question 20

Multiple Choice

The biological significance of water being its densest at 4°C is that

• A)bodies of water do not freeze solid.
• B)floating ice allows for a solid surface in open water.
• C)ice functions as a protective barrier in ponds and lakes.
• D)organisms are best adapted to 4°C.
• E)oceans are never colder than 4°C.

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