When an athlete prepares for the start of a sprint race, excitement causes the concentration of adrenaline in the blood to increase.
What effects does adrenaline have on the blood glucose concentration and the heart rate of the athlete?
1 )
blood glucose concentration: decreases / heart rate: decreases
2 )
blood glucose concentration: decreases / heart rate: increases
3 )
blood glucose concentration: increases / heart rate: decreases
blood glucose concentration: increases / heart rate: increases
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