Why were medieval manors nearly self-sufficient?
nobles allowed serfs to earn freedom as long as the manor ran smoothly.
the establishment of a middle class provided a stable economy and thus little direction was needed.
it was not necessary to hire anyone on the manor and most of the materials needed were on the premises.
slaves were brought in to run the manor efficiently.

d) iowa i believe is the answer

biological/genetic factors means they were born or predisposed to have something. nothing can really change it, and you can't really do much to "fix" it. it isn't something learned

these are the biological factors:

adrian is relatively tall and he is on the basketball team

(adrian can't ever stop being tall or force himself to be tall. likely one or both of his parents are tall as well and they passed on the tall gene. he probably does basketball because he is tall)

the rest are environmental/cultural factors. these are things that are taught to us. for example, cynthia wasn't born saving pocket money, her family most likely taught her this (environmental factor)

hope this !

after the senate and the house passed different bills and deadlock threatened, a compromise bill was worked out with the following provisions: (1) missouri was admitted as a slave state and maine (formerly part of massachusetts).