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

[EX Q]: Germs have _ means of locomotion execpt to attach themselves to particles of dust.
[EX A]: no

[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]: Nymphs have _ wings and readily run backwards, sideways, or forward when disturbed.
[EX A]:
no