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Certain variations are more likely to be passed on to future generations than others, because those variations help their possessors reproduce more successfully. Other variations are less likely to be passed on because they do not help, or even hinder their possessors in successful reproduction. We say that the helpful variations are selected by the very nature of things.
Without variation, whether an organism reproduces successfully or not is just a matter of blind chance. There is no natural tendency for certain individuals to be more successful at reproducing than others, because there are no differences between individuals.
What else can I help you with?
Why are variations in a species needed for natural selection to occur?
Variations in a species are needed for natural selection to occur because they provide the raw material for evolutionary change. Without variation, there would be no differences for natural selection to act upon, and individuals within a species would be identical. Variations allow some individuals to be better adapted to their environment, giving them a higher chance of survival and reproduction, thus driving the process of natural selection.
What are 4 factor Darwin's used for his theory of evolution?
Darwin's four main factors for his theory of evolution were variation, inheritance, selection, and time. Variation refers to the differences in traits among individuals in a population. Inheritance is the passing on of these traits from parent to offspring. Selection involves the process by which certain traits are favored in a given environment. Time is needed for these processes to occur over generations, leading to the gradual change in populations.
What do you think of the theory of evolution?
It does not mater what anyone thinks about the theory of evolution by natural selection. The theory of evolution by natural selection is the best explanation we have for much of the observed and observable fact of evolution. The theory is internally consistent with the fact of evolution, it is supported by myriad lines of converging evidence and it generates testable predictions in the form of scientific hypothesis. The opinion of no one is needed by the theory of evolution by natural selection and educated people have come to accept the theory.
What process has the organism undergone?
The process that an organism has undergone can vary depending on context. It could be related to natural selection, genetic mutation, physiological changes, or environmental adaptation. Clarification on the specific organism and context would be needed to provide a more specific answer.
How did geological gradualism and uniformitarianism influence Darwin?
Darwin's mechanism for evolution was natural selection through gradual change in the genome in response to factors pressuring from the environment. Geological gradualism, the thought that large changes are an accumulation of smaller changes over time and uniformitarianism, the idea that geologic processes have remained constant over many many years, gave Darwin a geologic time frame in which his mechanism of natural selection could operate. The small genetic variations and mutations that accumulated in an organism to shape the drastic changes leading to the differentiation of new species needed constant environmental pressures over a long period of time. Gradualism and uniformitarianism allowed for both of these criteria and so influenced Darwin's theory of evolution by means of natural selection.
Why are variations in a species needed for natural selection to occur?
Variations in a species are needed for natural selection to occur because they provide the raw material for evolutionary change. Without variation, there would be no differences for natural selection to act upon, and individuals within a species would be identical. Variations allow some individuals to be better adapted to their environment, giving them a higher chance of survival and reproduction, thus driving the process of natural selection.
Why are different moon phases needed?
They aren't needed they are a natural occurance. With variations of tides and reproduction based on them.
Is choosing one or none from a box of chocolates natural selection?
Neither artificial or natural selection. Chocolates, even variant chocolates, do not fit the criteria needed for either type of selection. No fidelity or fecundity.
How would you explain how natural selection affects the European rabbit exposed to the myxoma virus?
The rabbits with the traits to overcome the virus will live and be resistant to the virus. The rabbits who lack the traits needed to overcome the virus will die.
What concept is not a part of the theory of evolution?
Natural selection is part of the theory of evolution. The answer is transmission of acquired characteristics. Characteristics acquired but which are not genetic are not transmitted. For example, just because a person is a muscle builder, that doesn't mean his children will be really strong. Hope I helped!!
How natural selection may have led some fungi to produce antiboitics?
Since natural selection also means the survival of the fittest, those organisms that produce antibiotics (against life) had a weapon to keep other organisms from taking their space that they needed to grow and reproduce.
What famous ship sailed around south America giving Charles Darwin the information needed to develop the theory of natural selection?
H.M.S. Beagle
Why is variation important for natural selection and what are the main sources of this variation?
Without variation natural selection would have nothing to select from that would confer survivability and reproductive success. on the organisms being selected against the organisms conspecifics and the immediate environment. Mutation and sexual recombination provide the main sources of this variation that is needed to make selection work. Mutation is the variation presented that causes the real adaptive change that can lead to speciation.
What are gradualism and uniformitarianism's effects on Darwin?
Darwin's mechanism for evolution was natural selection through gradual change in the genome in response to factors pressuring from the environment. Geological gradualism, the thought that large changes are an accumulation of smaller changes over time and uniformitarianism, the idea that geologic processes have remained constant over many many years, gave Darwin a geologic time frame in which his mechanism of natural selection could operate. The small genetic variations and mutations that accumulated in an organism to shape the drastic changes leading to the differentiation of new species needed constant environmental pressures over a long period of time. Gradualism and uniformitarianism allowed for both of these criteria and so influenced Darwin's theory of evolution by means of natural selection.
What kind of species can evolve from natural selection?
All kinds of species. After all, all species that doexist are the result, primarely, of natural selection.+++That includes us! We were originally an African primate but slowly diffused to many other parts of the world where we needed different approaches to exposure to solar radiation: hence our several different strains (races). One effect only fairly recently know is that different races have different susceptibilities to certain illnesses - again a matter of natural selection although one hard to understand.
Could you explain why these qualities would be needed in your chosen job?
Could you explain why these qualities would be needed inyour chosen job
The variations needed for the origin of structural and physiological adaptations to occur are provided by what?
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