The fact that gravity exists as it can be repeatedly tested and verified
<span>I am pretty sure its the diaphragm, but its not located behind the lungs its below the lungs. </span>
Amino acids. These class of compounds
are considered the building blocks of most organisms, and around 500 of these
are known and indentified. All proteins, carbohydrates, and nucleic acids are
polymers ("many units") and each unit is an amino acid.
