An incomplete protein contains fewer than all nine essential amino acids, however incomplete proteins can be combined in meals to make a complete protein (for example by combining rice and beans or peanut butter and toast).
Psychology is the study of behavior and mind, embracing all aspects of conscious and unconscious experience as well as thought. It is an academic discipline and an applied science which seeks to understand individuals and groups by establishing general principles and researching specific cases.
The Five Psychological Processes. Psychology is the study of the mind and behavior. This can include many things, from how children learn a native language to how one finds a car in a crowded parking lot. Even the simplest human activities involve complex psychological processing.