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How was lamarks theory of evolution different than Darwin's theory?
Lamarck's theory of evolution proposed that traits acquired during the lifetime of the parent were genetically passed on to children. Some animal might, according to Lamarck's theory, learn a novel way of obtaining food, and then its children would be born with this novel mechanism already in place. Darwin, contrarily, proposed that lineages evolved new traits though natural selection: by the elimination of lineages that do *not* possess a certain trait.
What did things did charles darwin discover?
He didn't discover much other than the interesting variations in the shapes of the Galapagos finches' beaks. He formulated the famous Theory of Evolution, however, which might answer the question.
Why did scientists reject Lamark's idea of evolution?
Lamarck led the way for and had ideas that helped Darwin. However, his observations regarding the mechanisms of evolution were, with the exception of one, totally backwards. To summarize Lamarck, he hypothesized that organisms somehow had a choice in their traits and could change to fit the environment (he called these ideas his theories of need and his theory of use and disuse). The part he was correct on was that should an organism change, they would pass the traits on to their offspring. Darwin said, basically, the opposite. Darwin observed that organisms were born with slight differences (variations) and those variations might give some members of a species an advantage in the struggle to survive in the environment. The reward for survival was that the organism got to reproduce and pass those traits on to their offspring. Of course, the offspring might show some variation and the whole process would continue to repeat. However, the bottom line with Darwin (and contrary to Lamarck) was that an organism had no choice in its traits as an organism is born with or without the advantage. Darwin, without knowing its mechanisms, recognized that genetics played a part in evolution. Darwin died not knowing of Mendel's work on genetics which, of course, substantiates Darwin's theory.
Use Darwin's theory to explain how the trunks of elephants might get longer over many generations?
At one time in history there were elephants with long trunks and elephants with shorter trunks. The long trunks helped those elephants to survive and therefore pass their traits to the next generation.
How did Darwin believe the world began?
It is unclear to me to what degree Charles Darwin might have been a theist, or rather, a deist. He might have allowed for creationism in some form, where through some intelligent agency the first single celled lifeforms were put on Earth, in the expectation that they would multiply, evolve and produce complexity. But more likely he believed that the first life was the result of natural processes. There's a link below analyzing Darwin's beliefs on the subject. What sources available to me don't tell me is what Darwin believed about the origin of the planet and the universe. He lived in a time where the age of the Earth and the cosmos were still very much in dispute, and no single preferred hypothesis existed to explain their origin. He might have subscribed to something like the Kant Nebular Hypothesis, or he might have speculated along very different lines - if at all.
Which and why theory sound like an explanation that Bismarck might give?
Which theory sound like an explanation that Bismarck might give
Which theory sounds like an explanation that Lamarck might give?
Giraffes have long necks because their ancestors stretched their necks reaching for food, and this trait was passed on their offspring.
What is known as the fittest is Darwin's explanation for diversity in nature?
'Evolution of the fittest by natural evolution' is attributed to Darwin and Wallace. An alternate phrasing might be 'Failure of the least-fit by ... ', which equally (or better) explains the results.
Would Darwin have developed his theory of evolution if he had not read the works of Lyell and Malthus?
He might not of if Malthus had not been around but he depended on the works of Lyell.
What is the reason that a theory might be replaced with a new theory?
a theory is an explanation to a specific question being studied. it has been tested many times. it might be replaced with a new theory because new information come and so the past information will be improved.
Was darwin's theory correct?
Yes, yes it was. As far as we know though, in years to come, someone might find the possibility of it being incorrect, but if it ever happens, it will be a while.
Why is Darwin more famous than Wallace in the explanation of evolution?
The reason the focus, or major credit goes to Darwin is, though they both realized the principles of evolution, Wallace's presentation was little more than the realization. Darwin had had the realization and spent almost twenty years documenting and exploring the relations and complexities of said theory. Wallace himself had no difficulty with Darwin receiving the majority of the credit. Wallace had sent Darwin his paper on the topic, which kind of shocked Darwin that some one else might scoop his idea, he decided to present his idea to the Royal Society, and when he did so, he presented at the same time Wallace's paper, a very gracious thing to do on Darwins part. Wallace was at the time totally unaware of what was happening and only learned after the fact that he was presented to the Royal Society as co-discoverer of, The Theory Of Evolution By Natural Selection.
How was lamarks theory of evolution different than Darwin's theory?
Lamarck's theory of evolution proposed that traits acquired during the lifetime of the parent were genetically passed on to children. Some animal might, according to Lamarck's theory, learn a novel way of obtaining food, and then its children would be born with this novel mechanism already in place. Darwin, contrarily, proposed that lineages evolved new traits though natural selection: by the elimination of lineages that do *not* possess a certain trait.
What was the field of Gregor Mendels study that later supported Darwin's theory of natural selection?
i only know which detracted from Darwin's theory. It was his research in genetics. At Darwin's time, people believed that if someone was to have a burned ear, or his arm fell off, their offspring might have a missing arm or burned ear when born. As we know now, that is completely false, since we still carry the "good gene" (most of the time) and that there are actually things that prevent and fix cell mutations
What did things did charles darwin discover?
He didn't discover much other than the interesting variations in the shapes of the Galapagos finches' beaks. He formulated the famous Theory of Evolution, however, which might answer the question.
The difference between theory and fact?
A theory is an explanation based on observation, experimentation, and reasoning that can be used to make predictions. It is not proven to be true but can be supported with evidence. A fact, on the other hand, is a statement that can be proven to be true through direct evidence or observation.
How is Darwin theory of evolution by natural selection related to the origin of structural and physiological adaptations?
Charles Darwin's theory of evolution by natural selection related to the origin of structural and physiological adaptations because : Natural selection is when a certain organism adapts to its environment changes . For example , The Box Jellyfish has been existing befor the Dinasours which eventually helps us understand that it adapted to the changes in its environment in order for it to not extinct . It might have become the predator of its habitat or used camouflage to survive .
