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Fossils of Lystrosaurus, a dicynodont therapsid, are most common in parts of modern-day South America, South Africa, Madagascar, India, South Australia, and Antarctica. It apparently lived in arid regions, and was mostly herbivorous. It originated during the mid-Permian period, survived the Permian extinction, and dwindled by the late Triassic, though there is evidence of a relict population in Australia during the Cretaceous. The dicynodonts had two large tusks, extending down from their upper jaws; the tusks were not used for food gathering, and in some species were limited to males. Food was gathered using an otherwise toothless beak. Judging from the fossil record, these pig-sized organisms were the most common mammal-like reptiles of the Permian.
-Which of these is the most likely explanation for the existence of dicynodont fossils on modern-day Antarctica?
Autarky
An economic system where a country or entity is self-sufficient and does not engage in trade with external parties.
Comparative Advantage
The capability of an entity to generate a product or service with a lesser opportunity cost compared to others, resulting in enhanced trading efficiency.
Consumption Point
A specific point on a budget constraint that shows the combination of two goods that a consumer can afford.
Wheat
A staple grain that serves as a primary food source for a large portion of the world's population, used in a variety of products including bread, pasta, and cereal.
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