Why might the way we classify on orgaism change

All living things are organized into groups by scientists as they are identified. Different scientists use various systems of classification to organize all living things into groups. scientists classify living things is to understand the relationships between different organisms.

Explanation:

They are classification systems based on appearance rather than the genes of organisms. These are mainly used to identify organisms. When scientist find new species that may have to change classification systems in order to accommodate them. DNA sequencing has also let us find out more about evolutionary relationships.

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.