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.

Deer mice have four toes on the forefeet and ____ toes on the hind feet.
five

Dicots are plants that have ____ cotyledons.
two

Anthrax incubates silently in the body for ____ days to several weeks after exposure.

three