0
Charles Darwin
Author of The Origin of Species and creator of the theory of evolution and the concept of natural selection
3,722 Questions
What is the evolution theory of the creation of the universe?
Evolution does not concern the origin of the universe. Evolution is a theory concerning the origin of species--diverse biological organisms--via mechanisms of inheritance with modification.
The origin of the universe is best dealt with by the Big Bang theory.
Which is not a way in which natural selection affects the distributions of phenotypes?
Mutation is not a way in which natural selection affects the distributions of phenotypes. Mutations introduce new genetic variations, which can then be acted upon by natural selection to influence the distribution of phenotypes within a population.
What is the relationship between the fossil record and the scientific theory of evolution?
The fossil record independently confirms the general hypothesis of common descent, and allows palaeontologists and evolutionary biologists to confirm specific proposed phylogenies as well as specific hypotheses about the evolutionary past of various lineages.
What pattern did Darwin observe among organisms of the galapagos island?
they all digest food and it comes out the anis
*improved answer* actually it's spelled anus. He studied finches and the different types of beaks the finches had, which led him to find the evolution theory.
How did Jean Baptiste Lamarck influence Charles Darwin?
Jean Baptiste Lamarck's idea of the inheritance of acquired characteristics, although mostly rejected today, was one of the first systematic explanations for evolution, influencing Darwin's thinking. While Darwin's theory of natural selection differed significantly from Lamarck's, Lamarck's work helped pave the way for questioning and exploring evolutionary mechanisms that ultimately led to Darwin's own theory of evolution by natural selection.
The HMS Beagle made several stops during its expedition throughout the early 1830s, including parts of South America, Australia, and the Galapagos Islands. One of its most famous stops was in the Galapagos Islands, where Charles Darwin collected important scientific observations that later influenced his theory of evolution.
This is an example of adaptive radiation, where a single ancestor species diversifies into multiple specialized forms to occupy different ecological niches. The different beak shapes in finches allowed them to exploit various food sources on the Galapagos Islands, illustrating natural selection in action.
Which fossils are the most important to evolutionary theory?
Technically, fossils are not required to demonstrate the accuracy of the central hypotheses of evolutionary theory. The accuracy of common descent and natural selection can be demonstrated effectively only referring to observations in zoology, molecular and developmental biology, genetics and comparative genomics. However, the fossil record does allow palaeontologists to have a more detailed look at the form and behaviour of past lifeforms, something that comparative genomics by itself may not, and to confirm specific hypotheses about the nature and timing of specific events in the evolutionary history of diverging lineages. In this last category, transitional fossils are perhaps the most significant markers in the fossil record.
Three of Darwin's observations on galapago islands?
Darwin in the Galapagos Islands
Three of Darwin's observations on the plants and animals of the Galapagos Islands contributed to his realization that species are not immutable, specially created forms. First, he saw that closely related populations on nearby islands vary in appearance, as he explained in The Voyage of the Beagle1: "My attention was first thoroughly aroused, by comparing together ... the mocking-thrushes, when, to my astonishment, I discovered that all those from Charles Island belonged to one species (Mimus trifasciatus); all from Albemarle Island to M. parvulus; and all from James and Chatham Islands ... belonged to M. melanotis."
Second, Darwin noted that the inhabitants of an island usually have close affinities with forms on the adjacent continent, rather than with species occupying similar environments elsewhere in the world. This seemed to suggest that they were not created independently1: "It is probable that the islands of the Cape de Verd group resemble, in all their physical conditions, far more closely the Galapagos Islands, than these latter physically resemble the coast of America, yet the aboriginal inhabitants of the two groups are totally unlike; those of the Cape de Verd Islands bearing the impress of Africa, as the inhabitants of the Galapagos Archipelago are stamped with that of America."
Third, after returning to England, Darwin was informed by the ornithologist John Gould that many of the bird species in the Galapagos Islands that seemed to belong to different families were, in fact, all related members of a single family, previously unknown to science - and now known as Darwin's finches. Darwin quickly realized the implications of such phenotypic and ecological diversity1: "Seeing this gradation and diversity of structure in one small, intimately related group of birds, one might really fancy that from an original paucity of birds in this archipelago, one species has been taken and modified for different ends."
What did Darwin hypothesized that the different finches on the Galapagos islands all had a what?
Darwin hypothesized that the different finches on the Galapagos islands all had a common ancestor due to their similarities, but had evolved different beak shapes and sizes to adapt to different food sources on the islands.
What did Darwin hypothesized about the different finches on the Galapagos islands all had a what?
they all evolved from one finch by natural selection.
How long did Charles Darwin stay on the Galapagos islands?
2 years
Not sure where you got 2 years, Darwin's notebooks (that he wrote while on the voyage) state that he was in the Galapagos for five weeks, and spent only nineteen days of those on shore.
How did Charles Darwin discover gravity?
Charles Darwin did not discover gravity, that was Sir Isaac Newton in the 17th century. Charles Darwin was a naturalist and biologist known for his work in the theory of evolution through natural selection, not for discoveries related to gravity.
What did Charles Darwin find out about finches?
Charles Darwin found that finches on the Galapagos Islands had variations in their beak shapes that were well-suited to the different types of food available on each island. This observation led him to develop his theory of natural selection as a driving force of evolution.
What year did Charles Darwin leave from the Galapagos islands?
He got home in 1836 so it is around there.
Why was Charles Darwin interested in the Galapagos island?
Charles Darwin was interested in the Galapagos Islands because of their unique ecosystem and biodiversity. He observed different species of animals, particularly finches, on different islands which helped him develop his theory of evolution through natural selection. The variations in species found on the islands played a key role in shaping his ideas on the origin of species.
Darwin observed that all species populations have the reproduction potential to increase exponentially over time through his studies on natural selection and adaptation. He noticed that individuals within a population have the capacity to produce more offspring than the environment can support, leading to competition for resources and resulting in exponential population growth over generations. This observation formed the basis of his theory of natural selection as a mechanism for evolution.
What is the island where Darwin studied adaptation?
The island where Charles Darwin studied adaptation is the Galapagos Islands, located in the Pacific Ocean off the coast of Ecuador. Darwin's observations of the unique species on the islands, such as the finches, were instrumental in developing his theory of evolution by natural selection.
Darwin proposed that the first small population of finches that reached the Galapagos Islands from South America underwent adaptive radiation, where they evolved different beak shapes and sizes to exploit different food sources on the different islands. This resulted in the formation of new species over time.
5 of Charles Darwin's accomplishments?
Prvided scientific evidence that all species of life have evolved over time from one or a few common ancestors. Book "On the Origin of Species" Examined human evolution and sexual selection Found a lot of geological features, fossils, and living organisms that scientists did not know about Studies as a geologisst solved the puzzle of the info. of coral atolls
Is natural selection a source of variation within species?
No, natural selection does not create variation within a species. Instead, natural selection acts on existing variations within a population, favoring traits that increase an individual's chances of survival and reproduction in a given environment. The variation itself arises from mechanisms such as mutations, genetic recombination, and gene flow.
How does viral evolution support the theory of evolution?
Because viruses are single-cell organisms, they can mutate (evolve) quicker than complex, multi-cell organisms, where evolution gradually happens over time spans that humans can hardly fathom. Viral mutations give evolutionary biologists the opportunity to observe the process within timespans a human being can grasp. It not only supports the theory of evolution, but confirms it with demonstrable evidence.
What does the modern synthesis of evolutionary theory mean?
It means a synthesis was created between systematic biology, population biology, genetics, paleontology and botany to form the modern theory of evolution by natural selection. Before 1930 all biologists, and other disciplines, were confirmed in evolution but not all were sold on natural selection as the main driver of adaptive change, especially geneticists. By mathematical paraphernalia showing that gradual genetic change over time could drive evolution and a broad agreement among the other branches of biology and earth science we have the modern synthesis, some times called the Neo-Darwinian synthesis.
What country did Charles Darwin do his work?
Darwin traveled on HMS Beagle. His voyage was extensive, stopping at many exotic places and a trip which took nearly five years; they did not to return to England until October 2, 1836. During that time, they visited Tenerife, the Cape Verde Islands, the Brazilian coast, Argentina, Uruguay, Tierra del Fuego, Chile, the Galapagos Archipelago, Tahiti, New Zealand, Tasmania and the Keeling Islands
