Which of the following is a term for when an animal eats its own waste materials?

Nutrients are not absorbed in the stomach because:

A) the gastric lining is very lipid soluble. B) the epithelial cells lack proteins needed for absorption. C) the epithelial cells are not exposed to the chime. D) All of the above

Abruptio placenta occurs when:

A. the placenta prematurely separates from the uterine wall. B. a tear in the placenta causes severe internal hemorrhage. C. the placenta affixes itself to the outer layer of the uterus. D. the placenta develops over and covers the cervical opening.