TASK DEFINITION: In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
PROBLEM: In aerobic organisms , this final electron acceptor is oxygen .

SOLUTION: In aerobic organisms undergoing respiration , electrons are shuttled to an electron transport chain , and the final electron acceptor is oxygen .

PROBLEM: Xu Chongde ( 15 January 1929 3 March 2014 ) was a Chinese legal expert , professor and political scientist .

SOLUTION: Xu Chongde ( 15 January 1929 3 March 2014 ) was a well-known legal expert and professor , political scientist , and the member of the Communist Party of China in the People 's Republic of China .

PROBLEM: They put their claws back into their paws so they can move without noise and not leave footprints .

SOLUTION:
They retract their claws back into their paws , which grants them silent movement and protecting them from leaving distinctively incriminating pawprints that alert people to their actions .