Main article: Protein (nutrient) A complete protein (or whole protein) is a source of protein that contains an adequate proportion of all nine of the essential amino acids necessary for the dietary needs of humans or other animals.
Ethics is defined as a moral philosophy or code of morals practiced by a person or group of people. An example of ethics is a the code of conduct set by a business. the study of standards of conduct and moral judgment; moral philosophy. a treatise on this study.
Ethics is also the study of questions about what is morally right or wrong. When ethics has this meaning, it is an uncount noun. You use a singular form of a verb with it. We are only too ready to believe that ethics is a field where thinking does no good.