'The light skin of northern peoples prevents rickets by turning limited sunlight into the maximum amount of this vitamin'
vitamin D
ANTROPOLOGY: The light skin of northern peoples prevents rickets by turning limited sunlight into the maximum amount of this vitamin
The light skin of northern peoples prevents rickets by turning limited sunlight into the maximum amount of this vitamin
The light skin of northern peoples prevents rickets by turning limited sunlight into the maximum amount of this vitamin
ANTROPOLOGY
vitamin D
ANTROPOLOGY