How does the use of fossil fuels by humans affect the carbon cycle? The burning of fossil fuels prevents carbon from being released back into the air.

When humans burn fossil fuels, it consumes carbon dioxide.

Oxygen is replaced with carbon when fossil fuels are burned.

Burning fossil fuels releases carbon dioxide into the air.

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.