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.
Marine species are members of one of two classes, Polychaeta (Polychaete worms) or Hirudinea (leeches). A third class, Oligochaeta, includes the well-known earthworms. The phylum is up for a revision as recent research has revealed that the leeches should probably join the oligochaetes, together with the earthworms.o, the annelids now inlcude both segmented and unsegmented worms. They come in a huge variety of shapes and colors. Many of the worms live their lives buried in the sand while others stand up like flowers. Some are microscopic in size, others can reach a length of 3 meters.