instruction:
In this task, you need to write a topic word from the given fact. The topic word must have at least one word overlap with the given fact. The topic word often involves adding a new word from a related concept. In your topic word, use at least one word from the given fact. Topic words with two or more words work best.
question:
Fact: Aging occurs as cells lose their ability to divide.
answer:
Dividing cells.


question:
Fact: Bryophytes depend on moisture to reproduce.
answer:
Bryophytes.


question:
Fact: Most protists have motility.
answer:

Amoeba proteus protists are.