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

[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]: Mares normally give birth to their first foal when they are between _ and six years of.
[EX A]: three

[EX Q]: Blood pressure is really _ measurements, systolic and diastolic.
[EX A]:
two