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

[EX Q]: Wild alfalfa is fairly drought resistant, with roots going down _ feet.
[EX A]: ten

[EX Q]: Sturgeons are shark-like in form but are unique in having _ rows of bony plates along the body.
[EX A]: five

[EX Q]: Lizards differ from snakes in that they have _ feet and can move quite quickly.
[EX A]:
four