Please understand that EVOLUTION is not a true theory.Every SINGLE assumption and rule that evolution has put forward has been proved wrong ,not only by paleontological evidence ,but also by evidence from all divisions of science.
JUST think of it this way:
A changes to z very slowly through time .ok.But then,A has to pass through all 25 letters to get to Z.This means that WE SHOULD FIND More fossils of these INTERMEDIATE species rather than the complete organisms that have @evolved@.But in fact none exists.
Evolution is just a rumor that has been proven wrong but has been dragged out unnecessarily to the 21st century.
The phrased used by Lamarck was "inheritance of acquired characteristics". This mechanism of evolution hypothesized by Lamarck is not accepted today.
genetics
Lamarck proposed that by selective use or disuse of organs, organisms acquired or lost certain traits during their lifetime. Then passed onto offspring-leading to change in species
That organisms pass on traits acquired in their lifetimes. It was rejected in favour of Darwinian evolution, in which species and not individuals evolve, but Larmarckism is valid to a point where epigenetics is concerned.
Darwin read the book Lamarck wrote and said that he did not get one idea from it as it was ludicrous in content. So, Lamarck would be the one scientist that did not influence Darwin according to Darwin.
According to the biological species concept, when the new species no longer can interbreed with the ancestral species, or with the population that it has been geographically isolated from long enough to have allele change significantly enough to prevent interbreeding.
the actions of organisms as they use or fail to use body structures.
Jean-Baptiste Lamarck
Lamarck's theory is based on acquired characteristics. In other words if you break your arm your future children will be born with broken arms.
Lamarck did. Neodarwinism theorises that species evolve when gene frequencies change, not individual organisms. Larmarkism is true for epigenetic inheritance, favourable and unfavourable characteristics alike.
That organisms pass on traits acquired in their lifetimes. It was rejected in favour of Darwinian evolution, in which species and not individuals evolve, but Larmarckism is valid to a point where epigenetics is concerned.
Lamarck thought acquired traits were past on, but he was prover wrong by Darwin and his natural selection idea.
Jean- Baptiste Lamarck
Lamarck proposed that by selective use or disuse of organs, organisms acquired or lost certain traits during their lifetime. Then passed onto offspring-leading to change in species
That organisms pass on traits acquired in their lifetimes. It was rejected in favour of Darwinian evolution, in which species and not individuals evolve, but Larmarckism is valid to a point where epigenetics is concerned.
That depends on what you mean by 'immediate'. Drastic rates of evolution are possible in many species, where mutations are either relatively very common or where the environment results in harsh selection. But nothing will make one species "immediately" evolve into another in one generation, or even two or ten.
Populations evolve.
Lamarck's theory is that he thought that the long necks from giraffes come from other species of mammals.
Jean-Baptiste Lamarck