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Range of Tolerance

Range of Tolerance. Foss Environments Module. Environmental Factors. A relationship exists between a number of environmental factors and how well organisms grow. Environments factors (living or nonliving) can either help an organism grow or prevent it from growing.

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Range of Tolerance

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  1. Range of Tolerance Foss Environments Module

  2. Environmental Factors • A relationship exists between a number of environmental factors and how well organisms grow. • Environments factors (living or nonliving) can either help an organism grow or prevent it from growing. • Some factors could be temperature, amount of rain, or the quality of the air or water.

  3. Preferred Environmental Conditions • Each organism has a set of preferred environmental conditions. • The isopods we observed preferred to be in a dark and wet environment. • That’s why the isopods tried to get under the black construction paper roof on our terrarium.

  4. Range of Tolerance • Organisms have ranges of tolerance for environmental factors. • The range will be the high and low extremes of tolerance for an environmental factor. • Organisms have specific requirements for successful growth, development and reproduction. • Example: There may be a coldest temperature and hottest temperature an animal can survive in their environment. That is their range of tolerance.

  5. Optimum Conditions • Conditions that are most favorable for an organism to survive, grow and reproduce. • This optimum is somewhere WITHIN the RANGE OF TOLERANCE for that organism. • If an animal has a range of tolerance for temperature of 0-85 degree F somewhere within that temperature range will be the temperature that the animal grows BEST.

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