Many of them are at high elevations (Lake Victoria, 13,400 ft., being probably the most elevated), and are undoubted vestiges of an ancient period of glaciation. [Please select]
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"To collect air at different elevations." [Please select]
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Considerable difficulty was experienced in respiration at higher elevations. [Please select]
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_--Semi-arid habitats from sea level to elevations of 1000 m. [Please select]
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The Parnassians are butterflies of the far north or of high elevations in the mountains. [Please select]
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Nooks and dells, beautiful as fairyland, are embosomed in its most rugged and gigantic elevations. [Please select]
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