Two species of finches from the Galapagos Islands are shown below.
Warbler finch
Woodpecker finch
These two finches share a common ancestor from South America. What is the
most likely way that one ancestral finch species will develop into two distinct
species?

i believe the answer is true.

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.