Essentially, there was no mechanism for it to work - Larmarc's theory was that characteristics gained during a species life were passed to offspring; his example was the giraffe - stretching it's neck to reach high leaves made it's neck longer and this long neck was passed to it's offspring.
This was simply wrong; if someone has an injury, their offspring isn't born with that injury- the genes aren't affected by such lifetime experiences. However, modern research in genetics has shown that some experiences can cause chemical changes in the body which, in turn, can affect the genes so that the offspring is affected. So, to a small extent Lamarc had it right.
His theory was that as an organism use/disuses a body part, it will grow larger/smaller. This theory has been proved wrong and Darwin's theory of descent with modification is what is accepted today.
His concepts of use and disuse and heritability of acquired characteristics were not supported by the evidence and were shown to be incorrect.
No theory contradicts evolution. Evolution is the basepoint of all Biology.
There is no " theory of evolution " as evolution is a fact. The theory is; the theory of evolution by natural selection and explains much about the fact of evolution. Charles Robert Darwin and Alfred Russel Wallace come up with the theory of evolution by natural selection, though natural selection is a phrase coined by Darwin.
The theory of evolution is that all living things come from other living things.
The generally accepted theory of evolution by natural selection was proposed by Charles Darwin
The scientific theory is evolution.
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Larmark's theory was based on the idea that organisms inherited characteristics that they had acquired in life - so, if you have a scar your offspring will have scars. Darwin's theory assumed that offspring inherited characteristics from their parents, but they were more likely to survive to breed if there was advantage to those characteristics.
In Darwin's theory, natural selection plays the key role. Organisms vary through random mutations--slight changes from their parents. The environment determines which are most likely to survive. In Lamarck's theory, changes in phenotype are inherited. This is now known to be (largely) incorrect.
The theory of evolution explains the process of biological change and adaptation over generations in living organisms. Language evolution, on the other hand, refers to the development and changes in human languages over time. While both concepts involve change and adaptation over time, they occur in different domains - biological for evolution and linguistic for language evolution.
Theory of evolution refers to animals and plants evolution along the time. Language evolution is another issue, not entirely related to the theory of evolution. It follows the theory of evolution on some way but it is related to culture evolution, not to the physical attributes evolution.
No scientific theory ever challenged the theory of evolution.
No theory contradicts evolution. Evolution is the basepoint of all Biology.
He's not known for a theory of evolution. Darwin is.
Evolution is an observed and observable fact. The theory of evolution by natural selection explains many things about evolution. The theory generates testable hypothesis, as any good theory does. Remember, theory is the highest concept in science.
Darwin's theory of evolution was revolutionary.
There are many books that describe the theory of evolution. For example, there is a book called Evolution: The Remarkable History of a Scientific Theory.
Evolution