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: Sexual reproduction involves the union of cells from ____ parents.

A: two
****
Q: Human gestation is divided into three trimesters of ____ months each.

A: three
****
Q: Ground squirrels have a single litter a year that averages from ____ to nine young.

A:
four
****