To avoid some of the legal and ethical concerns about using embryonic stem cells,scientists are trying to use _______ to accomplish the desired result.

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Concerns about these stem cells come from the fact that the embryo destroyed is a new human person.However,we now have other sources of stem cells,including adult stem cells,which are found in many organs of an adult's body.For example,the skin has stem cells that constantly divide and produce new skin cells,while the bone marrow has stem cells that produce new blood cells.The chances of success are better if the stem cells are from the tissue to be produced.

To Avoid Some of the Legal and Ethical Concerns About