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Over many generations the short neck variant would have died out because it is less successful. Lamarck proposed that an organism’s offspring could inherit physiological changes it had acquired during its lifetime. It is no longer accepted in the version he proposed because numerous experiments have falsified it.Click to see full answer. Subsequently, one may also ask, how was Lamarck’s theory disproved?Lamarck’s Theory of Inheritance of Acquired Characteristics has been disproved. This was done in two major ways. The other way that Lamarck’s theory has been proven wrong is the study of genetics. Darwin knew that traits are passed on, but he never understood how they are passed on.One may also ask, what were Lamarck’s ideas about evolution and why were those ideas incorrect? Answer: Lamarck thought organisms changed during their lifetimes based on their needs and that those changes were then passed on to the next generation. This is incorrect because organisms cannot acquire traits during their lifetimes, like longer arms or a longer neck, and pass them on to their offspring. Likewise, why was Lamarck’s theory rejected? Simpson noted that neo-Lamarckism “stresses a factor that Lamarck rejected: inheritance of direct effects of the environment” and neo-Lamarckism is closer to Darwin’s pangenesis than Lamarck’s views.Is Lamarck’s hypothesis accurate?Wallace’s critique of Lamarck’s hypothesis is accurate. His own hypothesis about “the struggle for existence” is also accurate and refers to the theory of natural selection.

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