Non-resident aliens filing a U.S. tax return and not eligible for an SSN. 1  U.S. resident aliens (based on days present in the United States) filing a U.S. tax return and not eligible for an SSN. 2  Dependent or spouse of a U.S. citizen/resident alien. 3  Dependent or spouse of a non-resident alien visa holder.
The by-products of cellular respiration are water and carbon  dioxide. The water is produced at the end of the electron transport  chain by the union of oxygen with electronâ¦s and protons (hydrogen  ions) while the carbon dioxide is a by-product of the Kreb's cycle  and pyruvate decarboxylation.
The purpose of cellular respiration is to metabolize glucose to gain ATP. ATP is the desired end product. However, other products are carbon dioxide, water, and heat. Cellular respiration. You can decide which are by-products.