Worms are parasites that live within a host organism (human or animal) in order to obtain food. This relationship causes damage to the host, and in severe cases, the infection can be fatal. The term usually refers to the worms of worms, although they can infect other organs of the circulatory system. Tapeworms and worms are divided into three classes: tapeworms, worms and trematodes.
Earthworms (especially those used for worm composting) go way back. They are more like prehistoric creatures. But over time, worms physical structure evolved as things progress.
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