Does the sentence "In some areas, like aviation and railroads, the federal government has developed a comprehensive scheme that preempts virtually all state law, while in others, like family law, a relatively small number of federal statutes (generally covering interstate and international situations) interacts with a much larger body of state law." provide a valid answer to the question "What happens when both the federal and state governments have regulations that overlap?"

A: no

Does the sentence "The products of operon genes typically have related functions and are involved in the same regulatory network.:7.3" provide a valid answer to the question "What are most prokaryotic genes organized into?"

A: no

Does the sentence "The astrolabe was invented in the Hellenistic world in either the 1st or 2nd centuries BC and is often attributed to Hipparchus." provide a valid answer to the question "Who is thought to have invented the astrolabe in history?"

A: yes

Does the sentence "Enrollment at the Lawrence and Edwards campuses was 23,597 students in fall 2014; an additional 3,371 students were enrolled at the KU Medical Center for a total enrollment of 26,968 students across the three campuses." provide a valid answer to the question "How many people attended the University of Kansas at its Edwards and Lawrence locations in the fall semester of 2014?"

A:
yes