According to Robert Vrijenhoek, the asexual fish in the Mexican desert normally have more parasites than the sexually reproducing fish because they have no Question Blank 1 of 1 (1 word)
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Why do the sexual reproducing fish in the Mexican desert show much less parasitic than the asexual reproducing fish?
Adi S.
R. Vrijenhoek studied reproduction in small fish in the American Southwest. The fish can be infected with parasites that produce black spots on their skin. He showed that there are sexual and asexual populations of these fish. Vrijenhoek's research showed that asexual fish tend to be more susceptible to parasite infections than do sexual fish. Explain why this was the case AND what this pattern tells us about the evolution of sexual reproduction.
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