The membrane that lines the abdominopelvic cavity and secretes watery fluid to fill the spaces between the organs is ________.
A. pepsinogen
B. the pyloric sphincter
C. peristalsis
D. the peritoneum
Answer:D
The membrane that lines the abdominopelvic cavity and secretes watery fluid to fill the spaces between the organs is ________.
A. pepsinogen B. the pyloric sphincter C. peristalsis D. the peritoneum
Explanation: A) Pepsinogen is a digestive substance, not a membrane.