Final answer:
Tsunamis resulting from natural disasters can lead to significant death tolls and affect genetic structures of populations.
Explanation:
One effect that would most likely result from a tsunami is death of individuals within a population. Tsunamis, especially those caused by events like asteroid impacts or earthquakes, can result in massive destruction along coastlines, affecting both humans and wildlife. As natural disasters are not selective, they can lead to significant loss of life and impact the genetic structure of populations.
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