To see the fully FGDC compliant version of this metadata click here. Abstract: Hydric Soils are those that are wet at or near the ground surface for significant periods of the growing season. Digital data consists of mapping units of the various soil types found in Loudoun County, Virginia.
Sex Organs Are Visible. Although your baby's gender is determined immediately upon fertilization, you will not be able to know the sex until about the 16th to 18th week of pregnancy. At around the sixth week your baby will develop a small bud called the genital tuber at the site of the genitals.
The fetal period of prenatal development begins on the last day of the eighth week after fertilization and continues until birth. This stage is characterized by the exponential growth of the embryo, now called a fetus, and the development of fully differentiated organs and tissues.etween weeks 13 and 16, the baby begins to move with regularity. Lanugo, a fine, downy hair, begins to grow on the head. Meconium, a thick, dark green waste substance, is produced in the fetus' bowels and remains there (in most cases) until after birth.