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Would Darwin or Lamarck have agreed with the following statement?"A bunch of prehistoric penguins stopped using their wings to fly and the wings shrank from not being used. These penguins with shrunken wings then passed the shrunken wing characteristic to their offspring."

Question

Would Darwin or Lamarck have agreed with the following statement?"A bunch of prehistoric penguins stopped using their wings to fly and the wings shrank from not being used. These penguins with shrunken wings then passed the shrunken wing characteristic to their offspring."

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Solution

This statement aligns more closely with the theories of Jean-Baptiste Lamarck, a French biologist. Lamarck proposed a theory of evolution based on the principle of "use it or lose it." He believed that an organism can change during its lifetime in response to its environment, and those changes are then passed on to its offspring. In this case, the penguins stopped using their wings, so they shrank, and this characteristic was passed on to their offspring.

On the other hand, Charles Darwin's theory of natural selection suggests that traits providing a survival advantage become more common over generations. In this scenario, if the shrunken wings provided a survival advantage, such as making the penguins more efficient swimmers, then Darwin might agree that the trait could be passed on. However, the mechanism is different - it's not that the wings shrank from disuse, but that penguins with smaller wings had a survival advantage and were therefore more likely to pass on their genes.

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