Urine and feces are both considered excretions or wastes. how do they biologically compare?

Answer is given below:

Explanation:

Urine is a metabolic nitrogenous waste which is produced from cell metabolism. It contains urea which is a non-toxic molecule formed from toxic ammonia and carbon dioxide. Other constituents of urine are water, chloride, sodium, potassium, creatinine and other dissolved ions. Whereas, feces is non-metabolic waste. It is undigested food produced in the digestion process. Feces contains 75% water 25 % solid matter. Solid matter consists of cellulose, cholesterol, other fats, inorganic substances and dead bacteria. Urine does not contain any bacteria.        

request for reexamination

answer: 20 percent

the fish culture has become a developing commercial practice in developing countries which is already prominent in developed countries of the world. the major fish protein demand is being supplemented in developing countries is   fishing to meet the needs of the growing population. therefore, in some developing nations, the percentage of animal protein from fish in the diet can be as high as 20 percent.