Astudent is looking at a paramecium sp. using a compound light microscope. she turns the iris diaphragm to adjust

the brightness by controlling the amount of light beaming through the image

the objective lens and increase the magnification of the image

the electrons beamed through the image to regulate the brightness

the position of the paramecium sp. on the slide in order to center it for maximum magnification

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.