Answer and Explanation:
Protein is one of the most important molecules in our organism, being present in the composition of all elements, in addition to participating in several metabolic processes. This importance creates the need to study this molecule, however, to study it it is necessary to know the composition chemistry and the levels of structure it presents.
The chemical composition of proteins is related to amino acids, since protein is formed by them. In this case, we can say that the proteins have the same composition as the amino acids containing carboxylic acid and different amino groups, which is what determines the name and function of the amino acid.
In addition to chemical composition, the structure levels of proteins are extremely important, as they only function at a specific structural level. As for these levels, proteins can have a primary structure (there are more than two amino acids organized in a linear row), a secondary structure (when the primary structure turns into a helix species), a tertiary structure (formed by a more intense folding of the secondary structure providing the appearance of helices and leaves) and quarternary structure (when several tertiary structures are joined, allowing folding at the three-dimensional level. This is the functional structure of the protein).
 
        
             
        
        
        
DNA, cell membrane, cytoplasm, and ribosomes.
Both prokaryotic and eukaryotic cells have structures in common. All cells have a cell membrane, ribosomes, cytoplasm, and DNA. The cell membrane, or plasma membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment.
        
                    
             
        
        
        
Oxygen.
Oxygen was fatal when organisms started using photosynthesis, this event was known as the Great Oxidation Event.
        
             
        
        
        
Answer: by given steroid injection to animals 
                                   <u>and </u>
                    increasing production of cheap calories of Sugar and Triglycerides  for use in food products
The attempt by farmers to maximize profit prompted them to give hormones e.g streroids to  animals to increase their  biochemical reactions therefore the the products yields e.g they  are  giving  steroids  to poultry  to  improve chicken, eggs production;and  to  cattle for improved beef and milk production.
In order to obtain maximum sugar and fats productions, cheap calories  forms of there  are being  produced. e,g fructose, maltose. if  maltose  is consumed in excess  it leads to  obesity, while fructose increases the level of cholesterol.These products  requires a lot of processing with different chemical products which leads to health problems after consumption
Explanation:
 
        
             
        
        
        
Answer:
How everything on the earth are interconnected.
Explanation: