What structure divides the thoracic and abdominal cavities?

The diaphragm. Its a part of the abdominal cavity

~they act different around each other (shy,clumsy,friendlier)~their eyes dilate when looking at each other/ more eye contact towards each other ~ they lean their body toward you~gently touching each other~jealous when one is with another person~they try to copy youhope this

The question may be incomplete (there are not the possible answers), but according to the scenario, kaley and her coworkers could be in a humanitarian organization like red cross (in the us or in other countries). it's an organization which organizes health and safety services, disaster services, and blood donations.