Originally, two species of finches lived in the Maldives. One species had long, narrow beaks for capturing insects from within trees. The other species had larger, thicker beaks for cracking seeds. Following an increase in logging, this ecosystem’s population of finches with narrow beaks began to decline. How does this event support the theory of evolution?

It supports the idea of a common ancestor.

It illustrates the principle of natural selection.

It provides an example of behavioral isolation.

It demonstrates analogous structures and convergent evolution.

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.

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