Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

[EX Q]: Nitric oxide serves ____ main functions in the body.
[EX A]: three

[EX Q]: Wombats measure up to ____ feet long and weigh from thirty to seventy-five pounds.
[EX A]: four

[EX Q]: Termites have ____ body parts, the head, thorax and adbomen.
[EX A]:
three