instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Bull sharks are a 'requiem' species, reaching up to _ feet in length.
answer:
ten


question:
Aquatic adults have prominent red reathery gills, are large, and have _ toes on each foot.
answer:
four


question:
Chicks take _ years to develop full adult plumage.
answer:

five