Answer:
Step-by-step explanation:
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.
So again the basic tolerance. Range for salmon is going to be about 6 to 22 degrees. But then we'll also have individual salmon themselves which have slightly different ranges.
The range of tolerance in ecology is the values that an abiotic factor can reach without killing an organism. Abiotic factors are the non-living factors in an ecosystem like sunshine hours and temperature. If the values are above or below the range of tolerance, the organisms exposed to them die.