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

[Q]: Bull sharks are a 'requiem' species, reaching up to _ feet in length.
[A]: ten

[Q]: Disruptive selection can lead to _ new species.
[A]: two

[Q]: Parvo affects dogs of any age, but is most devastating to puppies less than _ months of age.
[A]:
five