Jun Jie observed that a fish in a bowl of water kept coming to the surface to 'gulp' air. This is because the fish __________.
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Worked Solution
Step 1: Living things like fish need air (oxygen) to survive.
Step 2: When dissolved oxygen in the water is low, fish often swim to the surface.
Step 3: This behavior shows the fish's need for air.
Correct answer: needs more air
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