Male assistant professors earned $117,800 per year and females made $103,900 per year. The lowest average pay for assistant professors in the 50 states was Lackawanna College at $35,700 per year. Of the collegeâs 31 full-time faculty, 18 were tenured and an additional nine had tenure-track positions.
The chorion is the outermost fetal membrane. It is formed by the fusion of the extraembryonic mesoderm with the inner surface of the trophoblasts. Its function is to aide in the production of the placenta. The chorion is the outermost fetal membrane. It is formed by the fusion of the extraembryonic mesoderm with the inner surface of the trophoblasts. Its function is to aide in the production of the placenta.
1 The chorion lines the inner surface of the shell (which is permeable to gases) and participates in the exchange of O 2 and CO 2 between the embryo and the outside air. 2  The allantois stores metabolic wastes (chiefly uric acid) of the embryo and, as it grows larger, also participates in gas exchange. The yolk sac contains yolk â the sole source of food until hatching. 2  Yolk is a mixture of proteins and lipoproteins. 3  The chorion lines the inner surface of the shell (which is permeable to gases) and participates in the exchange of O 2 and CO 2 between the embryo and the outside air.