• The animal kingdom is divided into several major categories called phyla (singular phylum). One of these is annelids (roundworms). Earthworms are annelids. Another phylum is platyhelmenthes (flatworms). Another phylum is vertebrates (animals with backbones, including fish, amphibians, reptiles, birds, & mammals). No worms. Another is arthropods (jointed appendages, exoskeleton) including insects, spiders, lobsters, crabs, etc.) No worms. Some so-called worms (like inchworms or caterpillars) are actually immature insects.
  • arthropoda (crustaceans, insects...) evolved from walking worms (cf velvet worms) Mollusca (snails, clams, octopi...) evolved from gliding worms vertebrates evolved from wriggling worms worms evolved from (probably sycytial) protozoa. AFAIK, worms are just worms. they are in a class all their own.
  • Look up the definition of insect and reptile. Then ask if an earthworm fits into either. No, they don't. Earthworms are made from puppy dog noses.
  • i think theyre insects

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