In english north american colonies, the application of slave codes was based on race and

The best answer that would complete the sentence 'In English North American colonies, the application of slave codes was based on race and...' would be 'and nothing else.' Slave codes were solely based on the race. Even if you're really poor but you're born white, then you cannot be a slave. 

The embargo act of 1807  was a law passed by the united state congress and signed by president thomas jefferson on december 22,  1807. it prohibited american ships from trading in all foreign ports. in 1806, france passed a law that prohibited trade between neutral parties, like the u.s., and britain.