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

[EX Q]: Liquids usually descend in three to five seconds, and solids in _ to twenty seconds.
[EX A]: eight

[EX Q]: Microsporophylls bear two to _ microsporangia.
[EX A]: eight

[EX Q]: Reproductive maturity occurs at _ to ten years.
[EX A]:
seven