Some fish in a murky underground lake have lighter scales than the others. This makes it slightly harder for the lighter fish to escape detection by predators, but most light-colored fish live long enough to reproduce. A natural event separates the dark-scaled fish from their light-scaled cousins, and as a result, a new species of dark-scaled fish emerges.
Which statement accurately describes the scenario?
(1 point)
Responses
The fish experienced an evolutionary change because of natural selection.
The fish experienced an evolutionary change because of natural selection.
The fish survived because of an inheritable advantage.
The fish survived because of an inheritable advantage.
The fish experienced an evolutionary change because of genetic drift.
The fish experienced an evolutionary change because of genetic drift.
The fish survived because of a non-genetic advantage.
1 answer
The statement that accurately describes the scenario is:
The fish experienced an evolutionary change because of natural selection.
This is because the lighter-scaled fish had a disadvantage in avoiding predators, which affected their survival and reproduction compared to the darker-scaled fish. Over time, this natural selection process led to the emergence of a new species of dark-scaled fish.
