Aaron is a pipeline welder at the midamerican energy company. recently, he had to make a decision about which torch to order for his job. based on past experience, aaron knew that if he selected a discount torch, there was a 95% chance that his manager would authorize the expenditure, but that if he selected a more expensive, brand-name torch, there was only a 50% chance that his manager would authorize the purchase. aaron's decision about which torch to purchase is being made under conditions of , because:

Scientists developed the first successful human cell culture in vitro (grown in a lab) in the 1950s by removing cancer cells from a woman. this concept has allowed modern scientists to successfully grow organs. which of the following answers  bestdetermines why there was success?   neurons send a signal to the cell to multiply. a large blood supply to the cell allows enough nutrients for growth. cells are the basic unit of life and thus can regenerate if in a controlled environment. cells cannot reproduce on their own, and the scientist manipulates them to grow.