Very fine hairs, called ____________________, appear first at 12 weeks of gestation on the fetus's eyebrows and upper lip. By 20 weeks they cover the entire body.

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The Answer of Very fine hairs, called ____________________, appear first at 12 weeks of gestation on the fetus's eyebrows and upper lip. By 20 weeks they cover the entire body.

Very Fine Hairs, Called ____________________, Appear First at 12 Weeks