instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Scientists use a characteristic to classify animals into _ groups.
answer:
two


question:
Albino barbs are a light yellow with _ barely visible stripes.
answer:
four


question:
Earthworms range in size from a few inches long to over _ feet long.
answer:

five