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

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

[EX Q]: Water is able to diffuse freely between the _ cells.
[EX A]: two

[EX Q]: Mosquitoes probably live only about _ weeks.
[EX A]:
two