The new species or descendants were perceived to represent the unity of life stating that all organisms have a common ancestor. True true False false Single Charles Darwin observed natural selection by breeding fancy pigeons and by learning about livestock breeding from some farmers True false False true Single Natural selection happens in individuals, which over time affect a larger group or population and may lead to speciation, a change in the frequency of observed phenotypes, or the introduction of a new trait. True false False true Single Extinctionrefers to the phenomenon where another biological function of a trait arises other than the function it was originally intended to perform by virtue of natural selection. True false False true Single The struggle for existence was inspired by an essay written by Thomas Malthus, an English economist. True true False false Single Individuals who have the trait must have similar reproductive successes. True false False true Single Species selection happens when a trait of not just an individual but of the whole species shows a better survival rate compared to another species. True true False false Single Phenotypic selection is specifically what was discussed earlier in this lesson to which adaptive traits are expected to increase in frequency than the other form of trait or phenotype. True true False false Single Sexual Selection, which is a result of male-to-male competition and female choice, can lead to differences in traits passed down and ultimately, the divergence of species. True true False false Single Gene Flow can decrease the diversity of a population through migration. True false False true Single