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A principle of biology is that biology affects our society. Whyare the cysts of protists important to epidemiologists, thebiologists who study the spread of disease?

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter20: The Protists

Section: Chapter Questions

Problem 12SA

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Concept explainers

Parasitic infections

A parasite is an organism that lives in the body of another organism and obtains food at the expense of the host. There are two kinds of parasites they are internal and external. An internal parasite lives inside another organism and is known as endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite.

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A principle of biology is that biology affects our society. Why
are the cysts of protists important to epidemiologists, the
biologists who study the spread of disease?

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