<span>To get into shape for the incoming softball season, Crystal, who enrolled into a hip hop dance class and targets that her heart rate be 142-180 beats per minute. With her current heart rate of only 125 beats per minute, she should dance at a faster pace. Thus, the answer to this item is letter A given that the duration of her dance is fixed at 45 minutes. </span>
Opiates, a class of drug.
The first one: Saturated fats
Second one: unsaturated fat
Third one: lipoprotein
Fourth one: cholesterol
(Second and fourth one not sure)
Answer:
D
Explanation:
as air passes through your system it is filtered, warmed and moistened because of you need that to breath.
