churn verb (CUSTOMERS) âº [ I or T ] specialized business If customers churn between different companies that provide a particular service, they change repeatedly from one to another.
Worms are not insects. Insects are in the Phylum Arthropoda, in the class Insecta. All Arthropoda have jointed body parts while Annelids are segmented but not jointed. Earthworms are in the class Oligochaeta (meaning they are segmented worms with only a few bristles). There is a bigger difference worms and Insects than between a Reptile and a Mammal.
Worms are most certainly NOT insects. There are many kinds of worms, but I am going to answer this as though you are asking about your typical Earthworm. Earthworms are a member of the phylum Annelida. Annelida is known, in general terms, as ringed or segmented worms, and is one of two clades belonging to the superphylum called Lophotrochozoa.