A graduate student wanted to use yeast to make radioactive C14 labeled ethanol. He mixed yeast extract with C14 labeled glucose and ethanol was produced from the added glucose. However, he was very disappointed that the ethanol was not labeled. He thought about the experiments and realized that he made a mistake. What could be his mistake

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary

i think the answer is terrae but not 100 percent sure. ▓▬▬ §

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)