Here are a few.
Difference from Christianity: Jews see Jesus as having been a regular human being, and do not believe in the Christian testament.
Difference from Eastern religions: Judaism is monotheistic.
Difference from Islam: Judaism does not believe that Mohammed was a prophet and does not believe in the Koran.
1) Jews are descendants of Abraham, Isaac and Jacob.
2) Jews received the Torah from God (Exodus ch.19-20).
The main difference between Messianic Jews and other Jews is that Messianic Jews is a merger between evangelical Christianity with elements of Judaism. It is a new religion, developed in the 1960's.
I highly doubt there are any physical differences between Jews and other people. Every is equal so there shouldn't be. However, that is my assumption.
Because Jews are not just a religion they are a race of people, and you can tell the difference. just like you can tell the difference between Asians and whites.
Christians believe that the Messiah Has Come. Jews believe that He Has not.
Jews are Jewish and non-Jews are a different religion.
Typically, there is no difference. "Yehudi" is just the Hebrew and Arabic word for "Jew". However, Yehudi can sometimes also be translated as Judean, referring to people of the ancient Kingdom of Judah who are the forerunners of today's Jews.
you tell me you asked it
Hasidim are a portion of Orthodox Jews. They follow Judaism on a strictly Orthodox level.
Romans were polytheists while Jews were (and still are) monotheists.
Orthodox Jews abide by the commands of the Torah and the Oral Torah (Talmud).
The "Final Solution" was genocide, mass murder of an entire people.
The same as American Jews and American Christians. It's about the faith.