The missing words for the blank spaces are the same word which is:
Coenzymes.
This means that the one way they can accomplish to regulate the body is to serve as coenzymes. Thus, all Vitamin B are coenzymes.
Coenzymes Vitamins allow enzymes to perform their important work of facilitating metabolism in the body. Metabolism is the chemical process that occurs within a living organism in order to maintain life.
A formal pattern of relations that link people together in order to accomplish a goal is an "Institution".
Institution is a social order where various people are assigned various goals to reach a particular destination. Institutions are permanent which mean that when someone or some people leave the institution, their roles are taken up by new people.
Mnemonic Device
Any system that helps retain information falls under the category of mnemonic device. Another example of this is when remembering the order of operations in math (PEMDAS) Please Excuse My Dear Aunt Sally.
Some people wished to become herders instead of farmers because of the land having dryness and the fact the fact that the area was hilly.
Hebrew and Arabic are the two official languages