Dysprosium-154 has a half-life of 3.0 million years for its alpha decay into gadolinium-150. A sample of pure dysprosium-154 has decayed so that it has 1.0 grams of dysprosium-154 and 15.0 grams of gadolinium-150. For how much time has this decay been happening? * 3.0 million years

6.0 million years

12.0 million years

16.0 million years

Compare the maximum rate of heat transfer to the basal metabolic rate by converting a bmr of 88 kcal/hr into watts. what is the value? from this comparison you should see why the body can accommodate a modes amount of activity in hot weather but strenuous activity would increase the metabolic rate above the body's ability to remove heat [12].