The ________ divides the aorta into the thoracic aorta and the abdominal aorta.
A) pericardium
B) mediastinum
C) diaphragm
D) peritoneum
E) pleura
Question 2
Which of the following is not part of oocyte activation?
A) softening of the zona pellucida
B) influx of sodium ion
C) membrane depolarization
D) release of calcium ion from smooth ER
E) discharge of exocytotic vesicles adjacent to the oocyte membrane