Which of these is an ethical issue associated with stem cell therapy? a) implantation of stem cells into patients is unethical. b) stem cell therapy involves shutting down the immune system. eliminate c) stem cells are extracted from patients without their consent. d) embryos are destroyed when stem cells are obtained from them.

D) Embryos are destroyed when stem cells are obtained from them.

Explanation:

Stem cells have brought about great expectations among the medical doctors, researchers, patients, and the general public due to their capacity to differentiate into a broad range of cell types. Stem cell researchers are engaged in different endeavors, including treating genetic disorders and generating new stem cell-derived human tissues and biomaterials for use in pharmacy genomics and regenerative medicine. Findings from fully completed and on-going clinical studies have revealed huge curative potential of stem cell-based therapy in the treatment of degenerative, autoimmune and genetic disorders.

How ever, the ethical issue involved is that it isn't right to cure illnesses or achieve whatever gain by destroying a developing human embryo since a human embryo is also a human being. Embryos are destroyed when stem cells are obtained from them.

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.