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

Q: Most anoles are said to live between _ and eight years.

A: four
****
Q: Nymphs feed for five to _ weeks before entering the adult stage.

A: eight
****
Q: Most aquatic life does well in water with oxygen concentrations of _ parts per million.

A:
nine
****