In a scenario where a population of deer have variations in their coat color, and those with lighter coats are better camouflaged from predators in their environment. Over time, these deer with lighter coats would have a higher chance of survival and reproduction, passing on their advantageous trait to the next generation.
The answer below is partly right, but natural selection actually does not act on an individual. As stated below, individuals within a population of a given species are selected based on physical trains which benefit, but not for the survival of the animal itself. It is important to note that in Darwin's Theory of Natural Selection, environmental change does not create new alleles but rather select from the gene pool of a population that has the allele which would benifit in a given condition. Thus, natural selection act on a population and its gene pool rather than the individuals. Yes. According to Charles Darwin's theory of natural selection, individuals within a population of a given species are "selected" based on physical traits which benefit the survival of the animal. However, they are only "selected" thanks to the individuals that die, because they are not physically suited for survival as well as the others. Natural selection acts directly only on those to die, because it is technically the only physical "act" or determining factor that demonstrates Darwin's theory. All the rest simply has to do with the animals left over, which simply breed as usual inevitably creating better and better animals, while natural selection picks off all those that are not quite good enough.
In short we have a a very powerful process at work, Natural Selection, perhaps not entirely the only process, but the most formidable in explaining all the diversity of life. Natural selection is the gradual, non-random process by which biological traits become either more or less common in a population as a function of differential reproduction of their bearers. It is a key mechanism of evolution. Please review the links below in sources for a better review of adaptation.
evolutionary biologists or population geneticists. They typically focus on understanding how genetic variation within and between populations drives the evolutionary changes that lead to speciation and adaptation. This involves studying processes such as natural selection, genetic drift, gene flow, and mutation at the level of individual organisms and populations.
Lake EyreSA15 m below sea levelLake EyreSA15 m below sea levelLake eyres in sa which has an elevation of 15m below sea level
Both options correctly state that humans have DNA. The second option is more specific to the scenario provided, as it directly links Sasha being a human with the fact that she has DNA.
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betrayal and forgiveness
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The answer below is partly right, but natural selection actually does not act on an individual. As stated below, individuals within a population of a given species are selected based on physical trains which benefit, but not for the survival of the animal itself. It is important to note that in Darwin's Theory of Natural Selection, environmental change does not create new alleles but rather select from the gene pool of a population that has the allele which would benifit in a given condition. Thus, natural selection act on a population and its gene pool rather than the individuals. Yes. According to Charles Darwin's theory of natural selection, individuals within a population of a given species are "selected" based on physical traits which benefit the survival of the animal. However, they are only "selected" thanks to the individuals that die, because they are not physically suited for survival as well as the others. Natural selection acts directly only on those to die, because it is technically the only physical "act" or determining factor that demonstrates Darwin's theory. All the rest simply has to do with the animals left over, which simply breed as usual inevitably creating better and better animals, while natural selection picks off all those that are not quite good enough.
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Artificial selection is when a human determines how an animal or plant breeds. For example: dog breeding. A breeder will put a male and female dog of the same breed together while the female is in heat in order to get them to breed. S/he chooses a male and female biased on their looks, genetics, and temperament. Natural selection however is when nature determines how an animal breeds. For example: wolves. If the temperature drops below a level which wolves with a thinner coat cannot survive, then they will die and thicker coated wolves survive and breed, resulting in wolf pups with thicker coats.