A worm is not classified as an insect because it does not contain the characteristics defined by the scientific classification system for insects. Worms are tubular and do not contain legs or properly segmented bodies, t... More »

Caterpillars are insects. They are the larval stage of butterflies and moths, which are flying insects. Caterpillars form pupae, within which they transform into butterflies and moths. More »

Nearly all animals referred to as worms are invertebrates, including earthworms, and by definition, invertebrates do not have bones. Exceptions include worm lizards, such as the Caecilians and Anguis lizards, which look ... More »

A worm's excretory system is different because it has excretory organs in almost every segment of its body. The system is made up of coiled tubes called nephridia that open into the body cavity. More »

A worm’s head is located at the end of the worm closest to the part of the body called the clitellum. Worms travel head first, extending their heads when crawling. It’s easy to determine where a worm's head is by observi... More »

www.reference.com Pets & Animals Bugs Worms

An effective worm shocker can be easily made with a few common household supplies, including an extension cord, electrical tape, wire nuts and a metal rod. Although using electricity to drive worms out of the ground afte... More »

The cerebral ganglion serves as a worm's brain. It is a collection of neurons, nerves and supporting structures that process input from the outside world, such as heat, light, movement and moisture. The ventral nerve on ... More »

www.reference.com Pets & Animals Bugs Worms