True or False. An offer (by a merchant) that is irrevocable without the necessity of consideration for a stated period of time or, if no definite period is stated, for a reasonable time (neither period to exceed 3 months). A firm offer by a merchant must be in writing and must be signed by the offeror.'

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.