During a typical period of stress for a mammal—say, a sprint across the savanna to escape a predator—energy is mobilized to power the muscles.
During a typical period of stress for a mammal—say, a sprint across the savanna to escape a predator—energy is mobilized to power the muscles.
对哺乳类而言，在典型的受压力期间，就说为了逃避猎食者而在草原上奔驰吧，身体会动员能量供应给肌肉。