Which of these statements about the virulence of rabbit myxoma virus is TRUE? A. Rabbit myxoma virus needed to become less virulent so it could coexist with its rabbit hosts. B. Directional selection favored a coevolutionary escalation where resistance evolved in rabbits and less virulence evolved in the virus. C. Rabbit myxoma virus became less virulent over time because natural selection favored strains that did not immediately kill the rabbit hosts, enhancing the likelihood of spreading and infecting other rabbits. D. None of the above is a true statement.
Which of these statements about the virulence of rabbit myxoma virus is TRUE? A. Rabbit myxoma virus needed to become less virulent so it could coexist with its rabbit hosts. B. Directional selection favored a coevolutionary escalation where resistance evolved in rabbits and less virulence evolved in the virus. C. Rabbit myxoma virus became less virulent over time because natural selection favored strains that did not immediately kill the rabbit hosts, enhancing the likelihood of spreading and infecting other rabbits. D. None of the above is a true statement.
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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Which of these statements about the virulence of rabbit myxoma virus is TRUE?
A. Rabbit myxoma virus needed to become less virulent so it could coexist with its rabbit hosts.
B. Directional selection favored a coevolutionary escalation where resistance evolved in rabbits and less virulence evolved in the virus.
C. Rabbit myxoma virus became less virulent over time because natural selection favored strains that did not immediately kill the rabbit hosts, enhancing the likelihood of spreading and infecting other rabbits.
D. None of the above is a true statement.
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