Answered: Some invasive species carry pathogens…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Some invasive species carry pathogens or parasites with them. Scientists think this might be one reason why some introduced species become invasive. Carrying pathogens or parasites might make an invading species more successful if the invading pathogen or parasite ___________

a. Selectively infects and kills native competitors

b. Dies out shortly after entering the new environment

c. Loses its ability to infect all species in the new environment

d. Selectively infects and kills the invasive species

Definition Definition Organism that lives in the body of another organism and obtains food at the expense of the host. A parasite can directly or indirect harm the host. There are two kinds of parasites: internal and external. An internal parasite lives inside another organism and is known as an endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite. Protozoa and helminths are examples of major human parasites.

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