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Does Lamarck believe that life diversified?
What was Lamarck's theory of organic development?
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What is Lamarckism theory?
Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.
- The Editors of Encyclopaedia Britannica
Darwinism recognizes natural variations within a population and suggests that advantageous variations are selected for over time. In contrast, Lamarckism does not emphasize natural variations as a driving force of evolution, focusing instead on the acquisition of traits during an individual's lifetime.
Most of Lamarck's life was a constant struggle against poverty; to make matters worse, he began to lose his sight around 1818, and spent his last years completely blind, cared for by his devoted daughters (he had been married four times).
Lamarck was proposing that life took on its current form through natural processes, not through miraculous interventions. For British naturalists in particular, steeped as they were in natural theology, this was appalling. They believed that nature was a reflection of God’s benevolent design.
Sep 28, 2017 · A comparison of the basic principles of these two theories shows that their visions of the living world are too divergent to be reconcilable. This does not detract from the fact that research on epigenetic phenomena will certainly lead to an enrichment of Darwinian theory.
Apr 12, 2021 · However, although Lamarck did not explore the idea in greater depth, he never denied that life diversified. On the contrary, he realised that different organic forms shared a relationship of origination with other organic forms and, in a sense, Lamarck’s outline may be considered a phylogenetic tree, showing relationships between organisms ...
