Related reading task: “Mountain Populations Offer Clues to Human Evolution”; level ** reading tasks, the first task
People moving to high altitudes suffer the effects of lower levels of oxygen. Although the body responds to cope, this effort is inadequate. People habitually living at high altitudes however, exhibit genetic differences resulting in biological changes, which in turn enable them to live comfortably at high altitudes.
48 words
Provided by: The Oracle
Provided by: The Oracle
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