I have always wondered what a worm is, but never asked, is it like a insect or bug or anphibiane?

Question

I have always wondered what the h**l a worm is but i never asked because i thought people would think im stupid but now im asking. is a worm like a insect or bug or anphibian?

Answer 1

Biologically, there's no such thing as a single "worm" group.  The word "worm" can be applied to almost any limbless invertebrate, regardless of how it's related to something else.  Segmented worms (annelids; includes the earthworms) are related to mollusks (clams, snails, etc.), round worms (nematodes) are related to arthropods, and so on.  Acorn worms (hemichordates) are related to echinoderms (starfish, sea urchins, etc.) and vertebrates. There are all sorts of not-very-related animals conventionally called "flatworms" unrelated to annelids, acorn worms, or nematodes.  

I've seen people refer to caterpillars and beetle grubs as "worms."  It's probably not as appropriate as calling a nightcrawler a "worm," but the word really does have a vague meaning.

The older taxonomic literature did, indeed, recognize a group called Vermes that included most erstwhile "worms."  But we now realize that the evolutionary relationships of these different groups are more complicated, and that keeping them within "Vermes" obscures what we actually know.

Answer 2

Worms are neither amphibian nor insect, it's an annelid. Some of them are parasites like roundworms, flarworms etc.

Answer 3

They're kinda in their own class.  They're invertebrates but then they go off on their own.

Answer 4

It's none of these. A worm is a separate classification of invertebrate animal.

Answer 5

its a bug