Although Jean-Baptiste Lamarck's theory of transformation proved to be incorrect, he contributed some important ideas to the study of evolution. Which of the following statements are Lamarck's ideas? Choose the two statements that apply. A. Evolution takes place by small gradual steps. B. Some organisms lived in ancient times but no longer exist today. C. Processes that made land features in the past are still in action today. D. Simple organisms can develop into more complex organisms over many generations. E. Similar animals originate from a common ancestor.