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Charles Darwin

Author of The Origin of Species and creator of the theory of evolution and the concept of natural selection

3,722 Questions

How did the work of Watson and Crick changed the world of genetics?

Watson and Crick's discovery of the double helix structure of DNA in 1953 revolutionized the field of genetics by providing a foundation for understanding how genetic information is stored and passed on. This breakthrough laid the groundwork for advancements in molecular biology, genetic engineering, and personalized medicine, transforming our understanding of heredity and evolution.

Why do people believe Darwin's theory now?

People believe in Darwin's theory of evolution because it is supported by vast amounts of scientific evidence from various fields such as genetics, paleontology, and comparative anatomy. Additionally, the theory of evolution has successfully withstood the test of time and continues to provide explanatory power for understanding the diversity of life on Earth.

What are other evolutionary mechanisms besides natural selection?

Other evolutionary mechanisms besides natural selection include genetic drift, gene flow, mutation, and sexual selection. Genetic drift is the random change in allele frequencies in a population. Gene flow refers to the transfer of genes between populations. Mutation introduces new genetic variation, and sexual selection drives evolutionary change through mate choice and competition for mates.

How did Charles Darwin influence Gregor Mendel?

He did not influence Darwin and Darwin did not know who he was. Darwin's ' blending theory of inheritance ' was wrong and though Darwin did not particularly like the theory he could think of nothing better to explain inheritance. There is a legend that Darwin had a copy of Mendel's work in his desk but could not read it because it was in German. Just a legend, though.

What is an example of fitness in survival of the fittest?

survival of the fittest

Is an inaccurate description of being fit as reproductive success is the coin evolution pays in. So, any trait that allows an organism to survive and reproduce more successfully than it's conspecifics makes the organism fit against the immediate environment.

The human Casanova that romances many women and leaves many more children than the " nice guy " is considered fitter, evolutionary speaking, than the " nice guy. "

So, faster, stronger, smarter may mean increased fitness, or it may not. Leaving many health progeny, and that can be dependent on physical fitness, on to grandchildren is what is considered fit in evolutionary terms.

How does the theory of punctuated equilibrium differ from natural selection?

They describe different things, so they cannot really be compared.

Natural selection is the mechanism that gives direction to evolution. Punctuated equilibria is a model for the varying rates of adaptation caused by natural selection.

What two key insights allowed Darwin to come up with the theory of natural selection?

Darwin's key insights in developing the theory of natural selection were the concept of variation within a population and the idea of differential survival and reproduction. He realized that individuals within a species exhibit variation, and those with traits better suited to their environment are more likely to survive and pass on their traits to the next generation.

How does pseudo genes contribute to evolutionary theory?

Pseudogenes are non-functional copies of genes that have accumulated mutations over time. By comparing pseudogenes across different species, scientists can study genetic changes that have occurred during evolution. Pseudogenes provide valuable insights into evolutionary processes and relationships between species.

Why Darwin's theory of evolution a theory in crisis?

Darwin's theory of evolution is not in crisis; it is widely accepted and supported by a vast amount of scientific evidence. The theory has been continuously refined and expanded upon since its inception, leading to a stronger understanding of how species evolve over time. While there may be ongoing debates and discussions within the scientific community about specific aspects of evolution, the overarching theory itself remains a foundational concept in biology.

Which of the following provides evidence that led many scientists to accept Darwin's theory of natural selection instead of earlier theories?

The discovery of genetics and the mechanism of inheritance through Gregor Mendel's work provided evidence supporting Darwin's theory of natural selection. This, along with the fossil record showcasing transitional forms and the observation of adaptation in response to environmental pressures, led many scientists to accept Darwin's theory over earlier ideas like Lamarckism.

What island provided the basis for much of Charles Darwin's theory of evolution?

The Galápagos Islands provided the basis for much of Charles Darwin's theory of evolution, specifically regarding natural selection. Darwin's observations of the unique species on different islands within the Galápagos archipelago contributed to his understanding of how species adapt to their environments over time.

How do Natural selection variation and adaptation all play a part in the process of evolution?

All creatures including human being undergo some kind of mutation is just that some mutation are very obvious, some are hidden mutation or some is so minute we dont even bothered as a mutation (eg. albino eyes, tan skin and other random stuffs like that). in normal circumstances, mutation doesnt affects the way we live as our body is already mutated for a certain enviroment but when circumstances changes, those with a better mutation would strive.

Take this example that DID NOT exist: lets say green eyes is one of those random mutations that no one cares about in normal circumstances. lets say in the future, some kind of solar flare hits earth and only those with green eyes would survive the flare. green eyes is at first very rare but as more non-green eyes died, only those with green eyes survives and their population became more. when they mate with other people, some of their childrens might have green eyes and some not. those without have a lower chance of survival. this continues until all human races have green eyes that can adapt to the solar flare.

this is what happen in natural selection. only those with the adaption survives these extreme circumstances. some evolution and mutation occur during this events as their body slowly mutate to adapt the enviroment and only those with a better mutation would survive long enough to pass their traits to their kids. our genetics are not fix and can change (or mutate) with the enviroment. like how some people are genetically born tall but due to lack of nutrients, they became short instead.

What is the Charles Darwin's idea of evolution?

That marshmallows are delicious and must be passed on to the next generation so that they might enjoy the deliciousness of marshmallows too. HE (as in God, as in Darwin, as in my GReat-gGreat-Great Grandmother) believed in passing on the good memories.

What importance does overproduce play in Charles Darwin's theory of evolution by natural selection?

overproduction - when a plant or animal produces more offspring than can possibly survive in nature. Of the thousands of eggs produced, only a few hundred will actually hatch and to become prawn (baby fish). Of those few hundred that hatch, only several dozen will live to be adults. An even smaller amount will successfully reproduce.

What is the genius of Darwin?

The genius of Darwin lies in his theory of evolution through natural selection, which revolutionized our understanding of how life evolved on Earth. By proposing that species change over time through a process of adaptation driven by competition for resources, Darwin provided a unifying explanation for the diversity of life forms we see today. His work laid the foundation for modern biology and continues to shape our understanding of the natural world.

What is evidence for biological evolutions through natural selection?

Evidence for biological evolution through natural selection includes the fossil record showing a progression of species over time, similarities in anatomical structures among different species suggesting a common ancestor, the presence of vestigial structures that serve no purpose but reflect evolutionary history, and the observation of adaptations in response to changing environments.

How does the geological time influence the theory of evolution?

Geological time provides a framework for understanding the timeline of evolution on Earth, allowing scientists to study how species have changed over millions of years. By dating fossils and rock layers, researchers can determine when specific organisms lived and how they evolved over time. This helps to build a more comprehensive picture of the history of life on Earth and the mechanisms driving evolutionary change.

What allows natural selection and evolution to occur for a tree?

Natural selection occurs in trees through genetic variation within a population, environmental pressures that favor certain traits, and differential reproductive success based on those traits. Evolution occurs as advantageous traits are passed on to future generations, leading to changes in the population over time.

What are the sequence events leading to evolution by natural selection?

Natural selection says that the fittest genes will be passed on. If a slightly different color will give a survival advantage, this will be passed on. This example can be applied to any gene.

Evolution has also occurred in the field of computers, telephones, etc. What works best and gives an advantage will be used.

How does intelligent design differ from the prevailing Darwinist view of evolution?

Evolution is a fact-based scientific theory backed up by more than a century of research and observation. It is a solid theory that fits the facts observed in biology, paleontology, and geology. Evolution adresses the origin and evolution of life, not that of the universe.

ID is a religion-based concept with no substantiated evidence that science would accept as such. It is in conflict with observed facts in four main scientific disciplines: biology, geology, paleontology, and cosmology. It makes statements about everything from the origin of the universe & the earth to the origin of life and denies the evolution of species, claiming that all species were created, but offers no explanation on the mechanisms of the process other than stating they are of supernatural origin.

Did Charles Darwin know about the universality of the genetic code when he proposed the methods of evolution?

The modern concept of genetics was unknown during Darwin's lifetime, and for many years after. Darwin based his theory of evolution upon observation of the similarities and differences between closely related species, and how they could have developed.

Why did fundamentalist disgree with Darwin?

Fundamentalists disagreed with Darwin's theory of evolution because it conflicted with their belief in creationism, which states that the Earth, life, and humanity were created by a divine supernatural being. They viewed evolution as undermining the biblical account of creation and challenging the authority of religious texts.

Does natural selection affect the survival of an individual or a species?

Natural selection affects the survival of individuals within a species. Individuals with advantageous traits that better suit their environment are more likely to survive and reproduce, passing those traits onto the next generation. Over time, this can lead to changes in the species as a whole.

What is the main concept behind James Hutton theory?

The main concept behind James Hutton's theory is uniformitarianism, which states that the processes shaping the Earth today are the same processes that operated in the past at a steady and uniform rate. This theory challenged the prevailing beliefs of catastrophism and laid the foundation for modern geology.

How does Mendel theory of inheritance support Darwins theory of natural selection?

By giving the theory a mechanism of inheritance. Particulate inheritance, where each parent contributes chromosomes ( Mendel dod not know what a chromosome was and called genes " factors " ) that contain separate alleles that contribute to the progeny's traits.

Darwin's idea of " blending " inheritance was completely wrong.

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