Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

Neuroblasts delaminate in five waves spanning approximately ____ hours.
three

Dogs can begin gundog training as early as ____ months of age.
six

Process color is used to reproduce color photographs or pages using more than ____ different colors.

four