Exponential growth tends to occur in populations that are found in environments and have population densities.

The answer to this question would be: favorable, low
Exponential growth happens when the resource is enough and competition is low. The example for this condition is when a small population move to a resourceful area. If the area having many resources, that means the area is favorable.

A low density population will need less resource. It is hard to get exponential growth in a high density population as the competition for the resource will be high.

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