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If a healthy freshwater fish is placed in salt water, what will be the expected consequence?
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- The fish becomes dehydrated and dies
- The fish becomes bloated and dies
- The fish suffers from fungal or bacterial disease and dies
- There is no observable effect on the fish provided there is sufficient food
- The fish becomes dehydrated and dies
Correct Option: A
When freshwater fish is placed in salt water, the water molecules contained in the fish’s body would pass through the cell membranes of the fish, causing the fish to lose water by diffusion. This sudden change in the molecular makeup of the fish would cause the fish to die.
