JUAN GAERTNER / SCIENCE PHOTO LIBRARY JUAN GAERTNER / SCIENCE PHOTO LIBRARY
Illustration of a tapeworm in a human intestine. Tapeworms (Taenia sp.) are parasites that inhabit the human gut. They anchor themselves to the inside of the intestine and absorb nutrients through their body wall. Tapeworms may grow to several metres in length, but infestation does not necessarily cause symptoms.
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