In the absence of air resistance, which ball (each having a different mass of 10 kg, 25
kg, 75 kg as seen below) will fall at the fastest rate when dropped?
mass = 10 kg
mass 75 kg
The ball with a mass of 75 kg.
They all fall at the same rate.
The ball with a mass of 25 kg.
The ball with a mass of 10 kg.

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.