Which concept states that the presence of favorable variations enables oranisms to adapt successfully to change in the enviroment?

Natural selection

Explanation:

Natural selection is the population mechanism that produces changes in gene frequencies due to adaptive differential reproduction of genotypes.

Differential reproduction refers not only to the number of offspring that occur, but also to the progeny's ability to survive until sexual maturity and reproduce.

In the context of population genetics, natural selection is one of the parameters that alters the Hardy-Weinberg equilibrium - state of a panmictic population, subject exclusively to the laws of Mendelian transmission, in which gene and genotypic frequencies are maintained. constants-. From the point of view of evolution, natural selection is a fundamental agent of adaptive evolution.

Natural selection is a mechanism whose occurrence depends on a set of independent events in nature. The deductive argument describing the process was originally proposed by Charles Darwin in 1859, in his influential book "The Origin of Species."

As from each species many more individuals are born than they can survive, and as, consequently, there is a struggle for life, which is repeated frequently, it follows that every being, if it varies, however weakly, somehow profitable for him under the complex and sometimes variable conditions of life, he will be more likely to survive and thus be naturally selected. According to the powerful principle of inheritance, any selected variety will tend to propagate its new and modified form.

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the correct answer is b