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ant sizes of workers: monomorphic, dimorphic, polymorphic
Depending on the species, workers in a colony can be
- Monomorphic, all the same size.
- Dimorphic, of two sizes.
- Polymorphic, more than two sizes.
Workers divide labor, so some leave the nest to find food while most of them stay in the nest to take care of all of the other tasks which need to be done.