read the text. at very high altitudes, the air holds less oxygen. recent research has revealed how people…

read the text. at very high altitudes, the air holds less oxygen. recent research has revealed how people living 13,000 feet above sea level in the mountains of tibet have adapted to their oxygen - poor environment. the tibetan population, as a consequence of living at high altitude for thousands of years, has developed several characteristics that allow them to survive and thrive in this type of environment. these characteristics enable tibetans to tolerate hypoxia, or low oxygen levels. for example, compared to lowland peoples, tibetans have greater lung capacity, the ability to generate a higher maximum heart rate when exercising, and a higher density of capillaries in their muscles. scientists have identified many other adaptive traits as well. some of these adaptations are linked with specific genes, thus allowing the traits to be passed from one generation to the next. which organizational structure does this text primarily use? sequential compare - contrast cause - effect

read the text. at very high altitudes, the air holds less oxygen. recent research has revealed how people living 13,000 feet above sea level in the mountains of tibet have adapted to their oxygen - poor environment. the tibetan population, as a consequence of living at high altitude for thousands of years, has developed several characteristics that allow them to survive and thrive in this type of environment. these characteristics enable tibetans to tolerate hypoxia, or low oxygen levels. for example, compared to lowland peoples, tibetans have greater lung capacity, the ability to generate a higher maximum heart rate when exercising, and a higher density of capillaries in their muscles. scientists have identified many other adaptive traits as well. some of these adaptations are linked with specific genes, thus allowing the traits to be passed from one generation to the next. which organizational structure does this text primarily use? sequential compare - contrast cause - effect

Answer

Brief Explanations:

The text first states the cause (living at high altitude with low - oxygen environment) and then describes the effects (Tibetans developing various adaptive characteristics). It doesn't present events in a sequential order or focus on comparing and contrasting Tibetans with low - landers in a balanced way. The emphasis is on the cause - effect relationship between the environment and the adaptations.

Answer:

cause - effect