Which statement about natural selection is true? group of answer choices it acts directly on genotypes. it is the same as evolution. it can have an evolutionary effect only if phenotypic differences are heritable. changes in allele frequencies can occur only because of natural selection. it always results in reduced genetic variation.

It can have an evolutionary effect only if phenotypic differences are heritable.

Explanation:

Natural selection is one of the several mechanisms for microevolution that change the allele frequencies of a population. The other mechanisms are genetic drift, gene flow, etc. Natural selection favors the best suitable phenotype under the prevailing conditions. It acts on the genetically regulated traits only. The adaptive traits that impart reproductive and survival success to individuals are favored by natural selection. These traits should be genetic and passed to the progeny to give rise to an evolved population.

you did not attach the discourse, but i assume it to be the discourse on the origin and basis of inequality among men (the original titile in french is: "discours sur l'origine et les fondements de l'inégalité parmi les hommes"), also know as "second discourse". in this discourse, jean-jacques rousseau emphasizes that private property is the basis of all inequalities.

therefore, what enabled the old regime to maintain as long as it did was private property.

it would lead to upper respiratory infections and pneumonia.