Identify the process used to form the covalent peptide bonds that join amino acids into a polypeptide.

Two amino acids are joined together by losing a water molecule, or hydrolysis.

Explanation:

A peptide bond is formed by binding two or more amino acids. This is a kind of covalent bond, wherein the carboxylic group of one amino acid and an amino group of another amino acid is linked together with a loss of water molecule or hydrolysis during the process. A polypeptide chain is now then composed of multiple peptide bonds, from binding amino acids (also known as residues at this point), with a linear configuration.

A closer look into this process involves the α-amino group as the beginning of the polypeptide series and ending with the α-carboxyl group. This also serves as the primary structure of the protein.

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

i believe you meant to say air rather than hair so the answer is below ")

the dead sea, the lowest place on earth at 430 metres (1,410 ft) below sea level, has a correspondingly high typical atmospheric pressure of 1065 hpa.