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.

Q: Cattails contain ____ times the starch of an equal weight fo potatoes.

A: ten
****
Q: Most organ systems are operational in the fetus by ____ to six months.

A: four
****
Q: Infant communities are very special environments for toddlers aged approximately one to ____ years.

A:
three
****