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Range of Tolerance
Graphing Worksheet

The range that a certain organism will inhabit depends largely on a few critical factors. In this activity, students will graph the influence that factors such as oxygen level and temperature have on the population size of a species of fish. They will then label the optimal range, zone of stress, and zone of intolerance for this species.

Essential concepts: Range of tolerance, critical factor, optimal range, zone of physiologic stress, zone of intolerance.

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