The Nuremberg laws defined who was considered

The Nuremberg Laws, as they became known, did not define a "Jew" as someone with particular religious beliefs. Instead, anyone who had three or four Jewish grandparents was defined as a Jew, regardless of whether that individual identified himself or herself as a Jew or belonged to the Jewish religious community.

Explanation:

the main inference that can be drawn from jean jacques rousseau's book the social contract is: a. people can enjoy civil and physical freedom, even if it sometimes harms society.

food chain i would say only because there is competition on getting food and survival