Answer:
The three parts of the cell theory are: cells are the smallest unit of life; all cells come from preexisting cells; and living thing is made up of one or more cell.
Nucleotides. They are the building blocks of DNA.
The human heart has only 4 chambers. Left and right atria and left and right ventricles.
They are formed primarily on the cell's Ribosomes.
Sea level - 100%
mid-level elevation - 4500M and 57%
Peak - 8850M and 33%
