BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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ice is less dense than liquid water so it will be on the top of a lake or pond allowing fish to swim beneath it
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water is available in all 3 phases so ice will be on the top of a lake or pond allowing fish to swim beneath it
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water is polar so ice will be on the top of a lake or pond allowing fish to swim beneath it
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Adhesion so ice will be on the top of a lake or pond allowing fish to swim beneath it
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Detailed explanation-1: -We know that when the temperature sinks below freezing, water first contracts and then expands as it begins to turn to ice. Ice, being lighter than water, floats. This means the surface of the lake is the first section to freeze. Fish can seek out warmer water by swimming ever deeper.
Detailed explanation-2: -The layer of ice that forms on top of a lake, pond, river, or stream provides some insulation that helps the waterbody retain its heat. Because warm water sinks in very cold freshwater, fish in these water bodies often gather in groups near the bottom.
Detailed explanation-3: -Underneath the frozen upper layer, the water remains in its liquid form and does not freeze. Also, oxygen is trapped beneath the layer of ice. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen lakes and ponds.
Detailed explanation-4: -Because fish are ectothermic (cold-blooded) animals, when the water they live in is below freezing, they need a way to keep themselves from freezing. This is where the antifreeze proteins come in. Antifreeze proteins have long strands of repeating amino acid units that can bind to ice crystals.
Detailed explanation-5: -One of the unique properties of water is that it becomes less dense as its temperature decreases from 4° C until it freezes at 0° C. This allows many aquatic life forms to survive through the winter. If ice were more dense than water, it would freeze and sink over and over until the entire lake was frozen.