Answer:
try not to cheat in a test next time?
Explanation:
.
It implants itself to the walls of the uterus (endometrium) by umbilical cord.
Answer:
B) venous blood and aveolar
Explanation:
Partial pressure of carbon dioxide in the aveolar is the lowest, it is 40mmHg (millimetre mecury ) while the partial of carbon dioxide in venous blood is the highest at 45 to 50 mmHg (millimetre mecury)
An eroded area of the stomach mucous membrane is called a peptic ulcer.