Answer:
Lay investiture.
Explanation:
There are no better terms to explain investiture as the main word is. This is explained to be the act of putting a cleric, layman or a bishop possession over the said unit or group that is been assigned to him. This in most cases is seen to be done by religious or non religious folks. In the context above, it is discussed that the king took it solely to himself to invest clerics which according to research was seen to cause a controversy between religious and non religious group at that tine and era.
In the Mexican-American war, the Mexican's were not prepared for the battle: they did not have a strong enough army to handle America and they were already falling apart.
Source was History.com if you need more
An organism's ability to maintain stable internal conditions is called homeostasis.
