Amber switches on an aquarium light just before feeding her fish, and the fish always swim to the top as soon as it comes on. curious, she decides to go a week without turning on the light at feeding time, and then see if the fish still respond to the light by swimming to the top. amber is trying to see if will occur.

Extinction

Explanation:

Based on the information provided within the question it seems that Amber is trying to see if extinction will occur. Extinction refers to when a species or group of organism's die out because of a change in their environment or a diminished resource. In this situation since the fish's are used to the light signaling that there is food, Amber wants to see if without turning on the light for a week if the fish's will know that there is food or if they will die completely.

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