The long-term significance of brown v. board of education is that it

a. found segregated schools to be constitutional if they were equal in quality
b. overturned the plessy v. ferguson ruling accepting segregated facilities
c. supported the case of plessy v. ferguson by saying segregation was illegal
d. decided that each state could determine whether segregation was legal

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

the correct answer is d

a conference committee is a group of congress representatives appointed by the senate and the house to reach an agreement over a bill that had different versions in each chamber. this is due to the fact that, to pass a law. both the house and the senate must agree on the exact same content and wording of the bill to present it to the president.