Yes. See the related question below for a discussion of those similarities.
Absolutely no similarity in any way.
No, it is not allowed in any of the three Abrahamic religions; Judaism, Christianity, and Islam.
Christianity, Islam, and Judaism are the main ones. Buddhism focuses on Buddha
Islam teaches us to believe in the oneness of Allah and not to associate any partner with Him. Islam also teaches to believe in all the prophets, angels and all the books given to these prophets.
Yes, of course. There are Christianity and Judaism religions besides Islam religion.
Christianity and Islam are both built on several concepts which they borrow from Judaism.
Assuming that you meant "Jerusalem", not "Judaism", the answer would be that the First Crusade drove the Muslims out of Jerusalem. The Second Crusade once again saw Muslims retake Jerusalem.If you actually meant the question as written, Islam had never been a part of Judaism, being a distinct religion based on its own unique texts (Qur'an, Hadith, and Sira). Islam and Judaism bear many similarities because they both believe in many of the same pre-Christian history/mythology, but were never unified in any belief system. As a result, it did not take any crusades to separate Islam from Judaism.
No, Islam has neither religious signs nor symbols in the sense as the Cross in Christianity and David Star in Judaism.
The biggest difference between Judaism and other religions is that Judaism has few if any converts. If you are not born into the religion, then you are not part of that religion. Buddhism, Christianity, Islam, Sikhism, Jainism all welcome converts.
do you see any similarities between eve and the harlot of gilgamesh
Yes. Any religeon outside of Islam, Christianity, and Judaism is defined as pagan.
There are not any similarities between a control and a variable. However, a Control Variable, is a variable.