Natural selection as a process:<br /> What are 2 features that describe the proc

Question

Natural selection as a process:<br />
What are 2 features that describe the process of natural selection?why do skeptice have such difficulty understanding natural selection? In one sentence, how who you helpe someone understand this concept?<br />
What were 2weakness associated with darwin&#39;s theory? How was each overcome eventually?<br />
What term did darwin prefer to use rather than the word evolution?<br />
Dose natural selection create variation? Explain in one sentence.<br />
What levels of organization can be used to look at similarities among organisms?<br />
Provide one reason why darwin&#39;s theory of natural selection was explantory.why was the theory also
considered predictive?name one organism that provided evidenxe for the predictive ability of the theory.<br />
I read the chapter &amp; i couldn&#39;t find the answer ! Plese i need helpe and because i have quize.<br />
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Explanation / Answer

For other uses, see Natural Selection (disambiguation). Part of a series on Evolutionary biology Key topics[show] History of theory[show] Natural history[show] Processes & outcomes[show] Social implications[show] Fields & applications[show] Evolutionary Biology Portal Category • Related topics • Book v d e Natural selection is the nonrandom 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. Variation exists within all populations of organisms. This occurs partly because random mutations cause changes in the genome of an individual organism, and these mutations can be passed to offspring. Throughout the individuals’ lives, their genomes interact with their environments to cause variations in traits. (The environment of a genome includes the molecular biology in the cell, other cells, other individuals, populations, species, as well as the abiotic environment.) Individuals with certain variants of the traits may survive and reproduce more than individuals with other variants. Therefore the population evolves. Factors that affect reproductive success are also important, an issue that Charles Darwin developed in his ideas on sexual selection, for example. Natural selection acts on the phenotype, or the observable characteristics of an organism, but the genetic (heritable) basis of any phenotype that gives a reproductive advantage will become more common in a population (see allele frequency). Over time, this process can result in populations that specialize for particular ecological niches and may eventually result in the emergence of new species. In other words, natural selection is an important process (though not the only process) by which evolution takes place within a population of organisms. As opposed to artificial selection, in which humans favour specific traits, in natural selection the environment acts as a sieve through which only certain variations can pass. Natural selection is one of the cornerstones of modern biology. The term was introduced by Darwin in his influential 1859 book On the Origin of Species,[1] in which natural selection was described as analogous to artificial selection, a process by which animals and plants with traits considered desirable by human breeders are systematically favored for reproduction. The concept of natural selection was originally developed in the absence of a valid theory of heredity; at the time of Darwin's writing, nothing was known of modern genetics. The union of traditional Darwinian evolution with subsequent discoveries in classical and molecular genetics is termed the modern evolutionary synthesis. Natural selection remains the primary explanation for adaptive evolution.

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