Hugo De Vries proposed the mutation theory. He states that new species are produced from the sudden and unexpected appearance of changes in their characteristics. He performed his experiments on Oenothera lamarckiana and obtained various aberrant types. He proposed that evolution is the phenomenon of the discontinuous process known as a mutation, that appears in the hereditary material suddenly and is transferred to the next generation.
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Charles Darwin is known for the theory of evolution by natural selection. It states that the heritable, physical, and behavioral characteristics of an organism change over time due to environmental fluctuations.
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Jean Baptiste Lamarck proposed the theory of evolution based on the hypothesis that physical changes like the growth and development of an organ in organisms during its life could be transferred to their children.
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Embibe Experts Biology Solutions for Exercise - Level 1
Simple step-by-step solutions to Level 1 questions of Evolution from Biology Crash Course NEET. Also get 3D topic explainers, cheat sheets, and unlimited doubts solving on EMBIBE.