Which statement is correct? sonography is often used during pregnancy, because it provides a way to evaluate the baby without risk. mri is an imaging tool that allows doctors to see internal structures in real time. act scan uses radio waves to determine the gray scale on an image. nuclear medicine involves the use of a high-frequency transducer to measure the radiation.

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.

20 the main source of energy for our planet comes from the

What is the chemical formula for dihydrogen monoxide?