Define cell and atom​

The key difference between cell and atom is that a cell is made of molecules whereas atoms make up molecules. Cells are the smallest functioning unit in a living organism. ... Hence, an atom is the smallest unit of matter

Cells are the smallest functioning unit in a living organism. ... Hence, an atom is the smallest unit of matter. Usually, a cell is on the micrometre scale while an atom is in the angstrom scale.

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.

uh two lol