Pronghorns are similar to antelopes and are native to North America. They live in open areas of grasslands. The photograph shows a pronghorn. These pronghorns can run long distances at speeds of 90 km per hour. Explain how the heart rate and ventilation rate of a pronghorn are increased to enable it to run long distances at high speeds. (4) ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................ ................................................................................................................................................................................................................................................................................

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