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.

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.