What was the major stumbling block for the acceptance of natural selection as a mechanism for evolution when proposed by Darwin?

Question

Quizplus · Accepted Answer

The major stumbling block for the acceptance of natural selection as a mechanism for evolution when proposed by Darwin was the lack of a plausible theory of heredity. At the time, the mechanisms of genetic inheritance were not understood, making it difficult for some to see how traits could be passed down through generations in the way Darwin proposed. This gap was later filled by the rediscovery of Mendel's work on genetics.

What Was the Major Stumbling Block for the Acceptance of Natural