Comparative anatomy shows that the bones in the leg of a horse, arm of a human, and wing of a bird have very similar structure. What part of the theory of evolution is supported by this evidence? A. Animals evolved from a common ancestor with the same basic bone
structure.

B. Animals evolved similar structures because they live in similar environments.

C. Animals evolved similar bone structure because they evolved at the same
time.

D. Animals evolved similar structures to perform the same functions.

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.

it should be briana that has it to me