Sally, who lives mostly in Frankston travelled to La Paz in Bolivia (altitude 3625 m). They experienced shortness of breath. This is because their hemoglobin: Binds oxygen more tightly in the lungs than a local. Binds oxygen more weakly in the lungs than a local. Binds oxygen more weakly in the tissues than a local. Binds oxygen more tightly in the tissues than a local.

At high altitude, you body also adapts by breathing ___.in smaller short breathsmore rapidlyless often

At very high altitudes, the air holds less oxygen. Recent research has revealed how people living 4,000 metres 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 organisational structure does this text primarily use?

Daisy’s collaborator, Catalina also travelled from Melbourne to La Paz at the same time. While Daisy was feeling tired and unwell, Catalina felt no such effects. In talking with Catalina, Daisy found out that Catalina is Bolivian and actually grew up in La Paz and has family in the local area around La Paz who has been there for generations.Based on what you know about adaptations of different human populations that have lived at altitude, which of the following is the most likely explanations for the different responses that Catalina had compared to Daisy on arriving at high altitude? (Select all that are correct. There may be one or more correct options)Group of answer choicesAltered mitochondria energeticsIncreased anaerobic metabolism capacitiesGenetics varianceHigher hematocrit levels

Andeans (people who live on the Andean mountains of South America) have more oxygen-carrying ___ in their blood.red blood cellsplateletswhite blood cellswater

Instead of more hemoglobin and red blood cells, Tibetans adapted to high altitude by breathing faster and having higher levels of nitric oxide, which widens ___, so they can more easily carry oxygen.lymphatic vesselsmuscle fibersblood vesselsnerve fibers