In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[Q]: Prokaryotes mean they have _ nucleus in which they store genetic material.
[A]: no


[Q]: District judges are attorneys who are elected on non-partisan ballots for terms of _ years.
[A]: six


[Q]: Sponges fall into _ main groups according to how their bodies are organized.
[A]:
three