Q: Plane mirrors work because the light rays create what behind the mirror? Choices: - a mirror image - a entire image - a virtual example - a virtual image A:
a virtual image

Q: Glutathione is a low-molecular-weight compound found in living cells that is produced naturally by what? Choices: - blood - brain - amino acids - liver A:
liver

Q: What is the term for the breakdown of unstable isotopes into stable elements? Choices: - isotopic decay - radioactive decrease - secondary decay - radioactive decay A:
radioactive decay