The estimated live weight (biomass) of earthworms below ground is, in many soils, greater than or equal to the weight of all the animals above ground. If each earthworm has a mass of 2.55 g, what is the biomass of earthworms living in that hectare

answeridentity;

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.