_______ is Defined as the Discharge of Metabolic By-Products and Wastes

Question

_______ is defined as the discharge of metabolic by-products and wastes.
A) Elimination
B) Excretion
C) Urination
D) Defecation

Accepted Answer

Excretion refers to the process of getting rid of metabolic by-products and wastes from the body. Elimination, urination, and defecation can all be considered forms of excretion, but they specifically refer to the removal of certain types of waste (e.g. elimination refers to fecal waste, urination refers to liquid waste from the kidneys, etc.).