Very fine hairs,called __________,appear first on the fetus's eyebrows and upper lip at 12 weeks of gestation.By 20 weeks,they cover the entire body.By 28 weeks,the scalp hair is longer than these fine hairs,which thin and may disappear by term gestation.

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The Answer of Very fine hairs,called __________,appear first on the fetus's eyebrows and upper lip at 12 weeks of gestation.By 20 weeks,they cover the entire body.By 28 weeks,the scalp hair is longer than these fine hairs,which thin and may disappear by term gestation.

Very Fine Hairs,called __________,Appear First on the Fetus's Eyebrows and Upper