What was the major obstacle that Darwin's theory of natural selection faced when first proposed in 1859?
A)It lacked a valid theory of heredity
B)It was unable to explain adaptation
C)It could not explain the origins of new anatomical structures
D)It required unreasonably long periods of time to operate

Question

Quizplus · Accepted Answer

When Darwin first proposed his theory of natural selection, there was no scientific understanding of how traits are inherited from parents to offspring. The discovery of genetics and DNA in the 20th century provided a basis for understanding heredity and helped to solidify Darwin's theory.

What Was the Major Obstacle That Darwin's Theory of Natural