Lucy is finding it difficult to play volleyball after school. Her doctor thinks that her cells might not be getting enough oxygen. When Lucy talked about it with a friend, her friend said there might be a problem with Lucy's respiratory system. Part A: What do Lucy's cells need in order for her body to function properly?

Part B: How might a problem with Lucy's respiratory system make it difficult for Lucy to play volleyball?

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.