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.
Psychology is the science of the mind and behavior. The word psychology comes from the Greek word psyche meaning breath, spirit, soul, and the Greek word logia meaning the study of something. Experts say that the approach to psychology is not that different to other sciences.