Farming, making a living, slavery, religion, i don't know if this is exactly what you're looking for but heres a rough idea.
Soviet Union is the answer
Most biochemical reactions need a biological catalyst called an enzyme to speed up the reaction. Enzymes reduce the amount of activation energy needed for the reaction to begin. Most enzymes are proteins that affect just one specific substance, which is called the enzyme's substrate.
plz mark me as brainliest if this helped :)
People who did hide Jewish people risked being put in a concentration camp or them and their family being killed themselves if they were found hiding a jewish person.
B. Mongols
It was established by Kublai Khan, leader of the vast Mongol Empire