What are the main points of the theory of Jean Baptiste Lamarck and explain what is the progressiveness of this theory.

1) Lamarck recognized the variability of species in the course of historical development, and this is his merit to science.
2) Lamarck put forward the idea of inheriting traits acquired
as a result of organ exercises. She did not find her scientific confirmation in the future.
3) Lamarck believed that signs that reappeared under the influence of the environment are always adaptive, since organisms have an internal desire for progress. This statement also turned out to be erroneous.

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