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The modern concept of a species, which was based on the capability of individuals of the same species to interbreed, was introduced by __

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La glucemia se mantiene normalmente en un rango muy estrecho, por lo general entre

Read the passage from Sugar Changed the World.Knowing that their slaves were likely to die by the time they reached their thirties, Louisiana sugar planters were extremely selective—they bought only healthy-looking young men in their late teens. On average, the men purchased in Louisiana were an inch taller than the people bought in the other slave states. Those teenagers made up seven to eight out of every ten slaves brought to America's sugar Hell. The others were younger teenage girls, around fifteen to sixteen years old. Their job, for the rest of their short lives, was to have children. Elizabeth Ross Hite knew that, for sure, "all de master wanted was fo' dem wimmen to hav children." Enslaved children would be put to work or sold. The overseer S.B. Raby explained, "Rachel had a 'fine boy' last Sunday. Our crop of negroes will I think make up any deficiencies there may be in the cane crop." That is, a master could sell any slaves who managed to live, if he needed more money than he could make from sugar.Jazz was born in Louisiana. Could it be that a population of teenagers, almost all of them male, were inspired to develop their own music as a way to speak, to compete, to announce who they were to the world? Bomba in Puerto Rico, Maculelê in Brazil, jazz in Louisiana—all gave people a chance to be alive, to be human, to have ideas, and dreams, and passions when their owners claimed they were just cogs in machinery built to produce sugar.How do the authors use historical evidence to support their claim in this passage?

If you crossed a plant variety that always produced purple colored flowers with a plant variety of the same species that always produced white colored flowers and then observed that all the offspring has purple flowers, one would conclude ________a. that the allele that produces purple colored flowers is dominant over the allele for white colored flowersb. that the allele that produces white colored flowers is dominant over the allele for purple colored flowersc. that the alleles that control flower are codominantd. that the alleles that controls flower color show incomplete dominancee. that flower color is controlled by multiple genes

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