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The development depicted in the excerpt had most in common with which of the following earlier developments? (Advertisement for radios)
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- Which of the following best explains the diffusion of plants and animals from their hearths of domestication?AAnimals were domesticated before plants and diffused rapidly from their hearth of domestication through contagious diffusion because they were mobile and moved easily from place to place.BDomesticated plants spread through wind-borne dispersal of seeds from their original hearth, expanding slowly until a vast region was covered with new plants.CBoth domesticated plants and animals spread across the globe through contagious diffusion in early years by farmers and traders, and later by relocation diffusion through European exploration and colonialism.DThe diffusion of plants and animals was limited to areas close to each hearth of domestication because the newly developed plants and animals could not readily adapt to different soil types.EThe diffusion of plants and animals was dependent on nomadic traders who traveled between agricultural villages because early farmers were sedentary and did not travel to other areas.
- The lionfish is a venomous fish found primarily in the Red Sea and the Indian Ocean. In the 1990s, lionfish were accidentally released into the Atlantic Ocean, where they found abundant resources and favorable environmental conditions. Which of the following scenarios is most likely to result in the lionfish having a major impact on the communities into which they were introduced?AWith no natural predators, the lionfish population will become very large.BSome native species of invertebrates will develop a resistance to lionfish venom.CRandom mating will allow the lionfish population to reach Hardy-Weinberg equilibrium.DA virus that specifically infects lionfish will become more prevalent.