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What does natural selection mean in science terms?
It is meant to indicate the Darwinian model for evolution, as opposed to for instance the Lamarckian model. It would be true that evolution occurs and has occurred even without Darwin; but until Darwin, various explanations would have been possible for why and how it happens. Darwin first formulated the thesis that evolution is directed by differential reproductive success.
What is essential in any model of natural selection?
Mutation.
What is the evolution of the atomic model from the billiard ball model to the electron cloud model?
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Which came first the theory of natural selection or the theory of relativity or the heliocentric theory or the theory of the the hydrogen atom?
In the following order: Heliocentric theory of the solar system (Aristarchus of Samos, 270 BCE) Natural Selection (Darwinian evolution, 1858) Theory of the hydrogen atom (as a small negatively charged particle inside a larger positively charged particle, 1904, the plum pudding model) Theory of relativity (special relativity, 1905) Theory of relativity (general relativity's initial paper on the acceleration of objects within the framework of special relativity, 1907) Theory of the hydrogen atom (as a small particle orbiting the atomic nucleus, 1909, the Rutherford or Planetary model) Theory of the hydrogen atom (as an "electron cloud" surrounding the atomic nucleus, 1913, the quantum mechanical or Bohr model) Theory of relativity (general relativity and its ability to warp space-time, 1915) So heliocentrism was, by about two millenia, the first. Relativity and the model of the hydrogen atom are intricately intertwined, so which came first depends on what you mean specifically.
What are the three categories of theory?
A theory is a set or collection of ideas than explain a fact. It can also be defined as: A set of principles on which the practice of an activity is based. the 4 theories according to biology can be: 1.Theory of Darwinism 2.Endocrine Theory 3.Immunological Theory 4.Watson-Crick model of DNA theories according to chemistry: 1.Kinetic molecular theory 2.Arrhenius theory of Acids and B 3.Atomic theory 4.Valence bond theory the 4 theories according to physics can be: 1.Theory of relativity 2.Quantum theory 3.Electroweak theory 4.Theory of uncertainity
What two people disproved evolution?
The Darwinian model of evolution by natural selection has not been disproved.
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 theory of evolution do you believe in and why?
There is only one evolutionary theory; the one based on Darwin's original model of natural selection. There have been previous models further back, like Lamarck's model for evolution through acquired traits, but these have long been falsified.So if one is considering accepting or withholding belief in a theory of evolution, ones choice is confined to the theory of evolution by natural selection, pioneered by Charles Darwin.Reasons for accepting the theory are plentiful: it is now so well backed by observational data that rejecting it would be equivalent to rejecting the heliocentric model of the Solar System.
Is random selection of prey essential in any model of natural selection?
No, many forms of natural selection have no connection to predation.
What does natural selection mean in science terms?
It is meant to indicate the Darwinian model for evolution, as opposed to for instance the Lamarckian model. It would be true that evolution occurs and has occurred even without Darwin; but until Darwin, various explanations would have been possible for why and how it happens. Darwin first formulated the thesis that evolution is directed by differential reproductive success.
Why do you believe in what do you believe?
There is only one evolutionary theory; the one based on Darwin's original model of natural selection. There have been previous models further back, like Lamarck's model for evolution through acquired traits, but these have long been falsified.So if one is considering accepting or withholding belief in a theory of evolution, ones choice is confined to the theory of evolution by natural selection, pioneered by Charles Darwin.Reasons for accepting the theory are plentiful: it is now so well backed by observational data that rejecting it would be equivalent to rejecting the heliocentric model of the Solar System.
What are the three theories of evolution?
The three main theories of evolution are Lamarckism, Darwinism, and punctuated equilibrium. Lamarckism suggests that organisms can pass on acquired traits to their offspring, while Darwinism proposes natural selection as the main mechanism of evolution. Punctuated equilibrium suggests that evolution occurs in rapid bursts separated by long periods of stability.
What is essential in any model of natural selection?
Mutation.
What model in which gradual change leads to species formation is called?
Natural selection is the gradual, non-random process by which biological traits become either more or less common in a population. It is a key mechanism of evolution. The term "natural selection" was popularized by Charles Darwin who intended it to be compared with artificial selection, what we now call selective breeding.
Did gh hardy and Wilhelm weinberg used algebra and probability to model natural selection?
No, the two of them used algebra and probability to model population biology, not natural selection, however similar the two may be.
What type of selection that humans control?
Artificial selection.Artificial selection is the selection, by humans, of which individual plants or animals to breed from. In this way desirable characteristics, such as increased yield or disease resistance, can be preserved or improved.Charles Darwin used artificial seletion as a model for how evolution could take place in nature, where competiton between individuals replaced the selective action of humans. He called the natural process 'natural selection'.See http://evolution.berkeley.edu/evosite/evo101/IIIE4Evochange.shtmlfor an excellent account.
What is the difference between deterministic and stochastic simulation models?
Any simulation model that does not contain any random or probabilistic element is called a deterministic simulation model. The characteristic of this type of simulation model is that the output is determined when the set of input elements and properties in the model have been specified. For example, a deterministic simulation model can represent a complicated system of differential equations. Many simulation models however, have at least one element that is random, which gives rise to the stochastic simulation model. In most simulation models randomness is important to mimic the real scenario, for example user connections to the internet arise 'randomly' when a person pressing a key. However, for any stochastic simulation model that has random output, the output (numerical results) can only be treated as an estimate of the true output parameters of the model
