How is the MRI imaging technique different from a CT imaging technique?
Group of answer choices

One procedure is cheap and the other is very expensive.

One requires the injection of radioactive dyes and the other does not.

One is used for transverse images whereas the other can be used for any orientation of the image.

One is used on superficial problems and the other is used to see inside of the body.

One uses X-ray technology and the other does not.

most likely to see nocturnal animals

a

explanation:

helicase, i think thats it

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.