The color of the hare is changed throughout the year: in the winter the hare is white and in the summer gray

The color of the hare is changed throughout the year: in the winter the hare is white and in the summer gray. Explain what kind of variability is observed in the animal and what determines the manifestation of this trait.

1) the manifestation of modification (phenotypic, non-hereditary) variability is observed in the hare;
2) the manifestation of this trait is determined by changes in environmental conditions (temperature, day length).

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