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

Q: Silks are susceptible to infection during the first _ days after initiation.

A: five
****
Q: Mangroves dominate _ quarters of tropical coastlines.

A: three
****
Q: Ants have _ pairs of legs, all originating in the thorax.

A:
three
****