EVERYDAY SCIENCE

Detailed explanation-1: -The range of variation under which a species can function and reproduce is called its tolerance range. Some organisms possess a wide range of tolerance for some environmental conditions, but most survive best within a narrower range called their optimum range.

Detailed explanation-2: -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.

Detailed explanation-3: -Individual organisms have an ability, termed homeostasis, to adapt to and withstand changes in environmental conditions that may be outside their optimal ranges.

Detailed explanation-4: -Tolerance – The ability of an organism to withstand fluctuations in biotic and abiotic environmental factors.

Detailed explanation-5: -Abiotic (non-living) factors that influence where a species can live.