Q:

Where do worms come from?

A:

Quick Answer

Experts say that most earthworms were imported from Europe to North America by settlers. To stabilize their ships, settlers loaded them with soil that contained earthworms and their cocoons. Glaciers had destroyed most native worm species in North America. Worms hatch from eggs or cocoons.

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Full Answer

Earthworms are not the only kind of worm. In general, worms are small animals with a long, soft body lacking appendages. A worm is also the immature form of some insects. Parasitic worms live in the intestines of animals and feed off nutrients there. A person undeserving of respect may be called a worm, as may invasive computer programs.

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    What are characteristics of segmented worms?

    A:

    Segmented worms have multiple segments that make them bilaterally symmetrical. Each segment houses an entire set of organs. Earthworms, ragworms and leeches are some of the 22,000 species of segmented worms. Capable of living in a variety of environments, segmented worms are an extremely viable group of animals.

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    Do worms have brains?

    A:

    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 the underside of a worm is primarily responsible for sensory input.

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    Worms do not have eyes but have organs that can sense light and touch. These organs help them to detect light intensity and to feel vibrations while moving on the ground.

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    Do worms have teeth?

    A:

    Worms have no teeth. They use their strong, muscular mouths to swallow pieces of leaves and dirt. The mouth is behind the firm and pointed prostomium, which is the front end.

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