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

Q: Young groundhogs are weaned and ready to seek their own dens at _ to six weeks of age.

A: five
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Q: Animals develop either two or _ embryonic germs layers .

A: three
****
Q: Insects are arthropods that have a body with three segments, six legs, and _ set of antennae.

A:
one
****