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: Populations of viruses do not grow through cell division because they are not cells.
answer:
cell division mitosis.


question:
Fact: if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past.
answer:
fish water animal.


question:
Fact: Centrioles are organelles involved in cell division.
answer:

cell division mitosis.