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The Variable selection hypothesis states that long term environmental unpredictability led to morphological and behavioral adaptions.

A Hypothesis is a type of suggestion which gives foe an event,can be tested. variable selection proposes that major features of human evolution were actually ways that our ancestors more adaptable.

Its a natural form that explains adaptation as a response to dramatically increased variability in the environment. when climate and other factors of environment vary drastically , it can really affects the organisms and other offspring over the time.

It's a process of selection of adaptation to environmental variability.A variable is a part of the experiment that can be change during an experiment.

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