Answer:
When the Turks then threatened to invade the Byzantine Empire and take Constantinople, Byzantine Emperor Alexius I made a special appeal to Urban for help. This was not the first appeal of its kind, but it came at an important time for Urban. Wanting to reinforce the power of the papacy, Urban seized the opportunity to unite Christian Europe under him as he fought to take back the Holy Land from the Turks.
Explanation:
A community would be like a lake of multiple species of animals and a population would be how many of each individual species in that lake
Answer: Their power was restricted to the crown lands known as the "lle de France".
Answer: When a neighboring state changes a law, those that are violating it will either cease or move. In this case, a same sex couple will most likely move to a neighboring state (unless they want to try to put up a fight with the officials). Then that state may be influenced and copy that law banning same sex marriage. The more this happens, states that don`t ban it will be "safe-states" for those couples. This process may continue and affect even more neighboring states. In fact, it can happen with any law. I`m not all that smart on this subject, and I would paste the link here, but Brainly won`t let me. Hope this helped, if not comment if you have questions