Define cell and atom​

Hemoglobin is the compound in red blood cells that carries oxygen to the body. the distribution of hemoglobin in women in g/dl of blood is approximately normally distributed with mean 14 and standard deviation 1. too little hemoglobin, and you're anemic. 2. too much, and (unless you live at high altitudes), you can have other problems.

Depending on the organism the number of in a cell may change

Did you know that a single bee would have to go to over 2 million flowers to make a single pound of honey?