There are currently millions of species of single-celled organisms, and million of others that were once here and are now extinct. which of these would best describe the first, most primitive organism to arise on earth from which all other life evolved? . a). unicellular eukaryote. b). unicellular prokaryote. c). multicellular eukaryote. d). multicellular prokaryote

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.