You start to culture a petri dish of marine bacteria. Each day, the number of visible colonies growing on the agar surface increases in this fashion: 2, 4, 16, 32, 64, 128. This growth pattern is best described as

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The pattern of growth doubles the number of colonies each day, which is characteristic of exponential growth. Each day, the number of colonies is multiplied by a constant factor (in this case, 2), which is a hallmark of exponential increase.

You Start to Culture a Petri Dish of Marine Bacteria