A parasite is an organism that lives on another animal and derives its nutrition from the animal by sucking. The organism to which the parasite is attached is called a host. The parasite has special sucker like organ to attach itself and suck blood from the host. The parasite can be present either internally or externally.

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Chapter 33, Problem 15TYK

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Introduction: A parasite is an organism that lives on another animal and derives its nutrition from the animal by sucking. The organism to which the parasite is attached is called a host. The parasite has special sucker like organ to attach itself and suck blood from the host. The parasite can be present either internally or externally.

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