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.