Which is lower in the food chain a mushroom or a tree

a mushroom

Explanation:

it don't make sense because the tree is not food chain

they are both primary producers so i would say they are at the same level, hope this helps

the answer is c i took the test

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.