In any ecosystem two factors interact together are abiotic factors and biotic factors. Abiotic factors include non-living such as soil, air, water and climatic factors ( temperature, humidity, rainfall or precipitation) whereas, biotic factors includes all the flora (plants) and fauna (animals). These two factors interact through food chains to function an ecosystem.
Proteins and polypeptides are different because of their structure makeup. Proteins do not have an amino acid as their monomer. A polypeptide is made up of many polymer bonds, where a protein is not. The peptide bonds are made of amino acids, which again, proteins do not have.
Complex carbohydrates not broken down by digestive processes are called fiber.
About 1 billion according to the photo
