Based on the clue 'a reserved or restrained manner often resulting in...', what is the answer?

What is associated with: a research vessel from this oceanographic institute on cape cod located the titanic in 1985? What is associated with: a researcher fiddles with sharks brains to find a cure for alzheimers disease in this watery 1… Based on the clue 'a researcher has shown that this feared amazon fis...', what is the answer? Based on the clue 'a reserve in cyprus has been established to save t...', what is the answer? Based on the clue 'a reservoir called the queens basin once graced th...', what is the answer? Based on the clue 'a resident member of a hospitals medical staff or ...', what is the answer? Based on the clue 'a resident of la its also a word preceding heights...', what is the answer? What is referred to by 'a resident of naples'?