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

[Q]: House wrens are small birds, four and a half to _ and a four inches in length.
[A]: five


[Q]: Mountain sheep have _ sharp teeth at the front of the mouth.
[A]: eight


[Q]: Individual monerans are single cells with _ nucleus or internal organelles.
[A]:
no