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

question:
Many predatory mammals have claws that can hide inside the animal 's paw , especially animals such as the cat .
answer:
Many predatory mammals have protractile claws that can partially hide inside the animal 's paw , especially the cat family , Felidae , almost all of whose members have fully protractible claws .

question:
In 1990 at the age of 29 , she became one of their first female partners .
answer:
In 1990 , she was admitted as a partner ; at the age of 29 , she was the youngest partner within the firm , and one of the first women to hold the position .